Science > Physics > New Cubic Atomic Model explains electron energy levels and bonding
| Topic: |
Science > Physics |
| User: |
"" |
| Date: |
02 Feb 2005 11:05:56 PM |
| Object: |
New Cubic Atomic Model explains electron energy levels and bonding |
I have been working on an atomic model which assumes that atoms are
made up of alternating series of protons and electrons. The original
web site describing my first attempts at this model can be found at:
http://ourworld.compuserve.com/homepages/frankhu/buildatm.htm
However, this initial model could not explain the observed electron
shells. After re-working the model, I have discovered an arrangement
which can account for the observed energy levels. This model can also
account for the molecular binding characteristics (common oxidation
numbers and binding angles) for some of the atoms I have worked out in
detail from Hydrogen to Neon. See this revised model at:
http://www.geocities.com/franklinhu/atmpics2.html
This model provides a clear and intuitive reason why atoms have the
properties that they do. If you think it is a little difficult to
explain how electron clouds could possibly form bonds, have a look at
this model. In this model, bonds form through simple electrostatic
attraction of oppositely charged particles.
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| User: "Franz Heymann" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
03 Feb 2005 12:13:55 AM |
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<franklinhu@yahoo.com> wrote in message
news:1107407156.741506.160170@c13g2000cwb.googlegroups.com...
I have been working on an atomic model which assumes that atoms are
made up of alternating series of protons and electrons.
Dead on arrival
[snip]
Franz
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| User: "Uncle Al" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
03 Feb 2005 10:32:23 AM |
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wrote:
I have been working on an atomic model which assumes that atoms are
made up of alternating series of protons and electrons.
[snip]
You would have been an idiot 85 years ago: Rutherford scattering re
Hans Geiger and Ernest Marsden, 1909-1911. Today you are a public
fool.
F = [1/(4(pi)y_0)][(2Ze^2)/(r^2)]
dN/dQ = n([(2e)(Ze)]/(4(pi)y4E)]1/(sin4(G/2))
(mv^2)/2 = [(2e)(Ze)]/(4(pi)y_0r_0)
r_0 = [(2e)(Ze)]/2(pi)y_0mv^2)
F - force
(2e) - alpha particle charge
(Ze) - atomic nucleus charge
y_0 - permittivity of free space
r - distance between the nucleus and particle
dN- the number of alpha particles scattered/time unit inside the
solid angle dQ
dQ - solid angle
n - alpha particle flux density
G- angle of scattering alpha
E - alpha energy.
m - alpha particle mass
v - alpha particle velocity before collision
r_0 - nuclear radius
Even at the turn of the century, r_0 ~ 3x10^(-14) meter as compared to
the radius of an atom.
This model provides a clear and intuitive reason why atoms have the
properties that they do.
Fucking imbecile. Spectroscopy, including selection rules; fine and
hyperfine line splittings - Stark and Zeeman splittings. Crystal
field splitting. Fermi exclusion rules and the Periodic Table.
Aufbau!
http://www.mazepath.com/uncleal/sunshine.jpg
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf
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| User: "Y.Porat" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
04 Feb 2005 12:12:45 AM |
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Fucken hand waiver and an icurable parrot.
---------
Y.Porat
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| User: "Morituri-|-Max" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
03 Feb 2005 01:38:30 AM |
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wrote:
I have been working on an atomic model which assumes that atoms are
made up of alternating series of protons and electrons.
Why do you arbitrarily assume this? What have you observed that would
benefit from this arrangement?
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| User: "" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
03 Feb 2005 11:11:57 PM |
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Morituri-|-Max wrote:
franklinhu@yahoo.com wrote:
I have been working on an atomic model which assumes that atoms are
made up of alternating series of protons and electrons.
Why do you arbitrarily assume this? What have you observed that
would
benefit from this arrangement?
The benefit is simplicity. I am working towards a model of the atom
which can be understood in purely classical mechanical (billiard ball
etc.) concepts where the "why" something happens can be clearly
observed from the mechanical structure. For example, the bonds that
form with Oxygen are at a high angle > than 90 degrees. Why doesn't it
form a linear bond like that seen in CO2? The Cubic Model shows that
the avaliable bonding sites for Oxygen are at 90 degrees to each other
and not 180 degrees as can be found in Carbon.
It is also simple in terms of what we know about protons and electrons.
A hydrogen atom can be thought of as nothing more than an alternating
series of proton/electron. A hydrogen H2 molecule would also be
similar. The Cubic Atomic model throws in an additional binding type to
form neutrons, but it is the logical extension of just gluing together
hydrogen atoms. Also, if the electron is not orbiting the proton and is
in fact just sitting static on the proton, this eliminates the problem
that one would expect an electron moving about the proton would radiate
energy. I have seen/heard/read/debated all about the various
explanations of how an electron moving about the proton doesn't radiate
energy and I find none of it convincing. It usually just boils down to
"that's how it works stupid" - which isn't much of an explanation. If
the electron moves about the proton, it must radiate energy plain and
simple. Since we observe that it doesn't, it must be static in relation
to the proton as is assumed in the Cubic Model.
When a electron is, in fact, allowed to freely roam about the proton,
this means it has been ionized and is released from the atom and in
this case, we do observe the electron giving off the expected energy.
The energy this gives off is governed by the rules of spherical
harmonics which (as near as I can tell) the usual QM formulas are based
off of. So I think that there is no contradiction between what is
observed and predicted for QM, because what you are dealing with is the
behavior of electrons which have been ionized and whether an atom
contains a large nucleus (Cubic Model) or a small nucleus (Rutherford)
doesn't matter since all charges act if they were concentrated in a
point anyways. But once you allow the atom to come back to the ground
state, the electron mates back up with its proton in a static position
and everything about QM observations are meaningless since you don't
observe anything happening with an atom at ground state.
One thing I do not understand (and hopefully someone can clarify) is
how you can determine the electron energy levels from the spectrum
released by ionized atoms. It doesn't seem like the line spectra fall
into patterns that would suggest the electron shell configuration. I
can see how the electron shell levels can be derived directly from the
ionization data.
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| User: "Franz Heymann" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
04 Feb 2005 12:30:51 AM |
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<franklinhu@yahoo.com> wrote in message
news:1107493917.566385.68460@z14g2000cwz.googlegroups.com...
Morituri-|-Max wrote:
franklinhu@yahoo.com wrote:
I have been working on an atomic model which assumes that atoms
are
made up of alternating series of protons and electrons.
Why do you arbitrarily assume this? What have you observed that
would
benefit from this arrangement?
The benefit is simplicity. I am working towards a model of the atom
which can be understood in purely classical mechanical (billiard
ball
etc.) concepts where the "why" something happens can be clearly
observed from the mechanical structure. For example, the bonds that
form with Oxygen are at a high angle > than 90 degrees. Why doesn't
it
form a linear bond like that seen in CO2? The Cubic Model shows that
the avaliable bonding sites for Oxygen are at 90 degrees to each
other
and not 180 degrees as can be found in Carbon.
It is also simple in terms of what we know about protons and
electrons.
A hydrogen atom can be thought of as nothing more than an
alternating
series of proton/electron. A hydrogen H2 molecule would also be
similar. The Cubic Atomic model throws in an additional binding type
to
form neutrons, but it is the logical extension of just gluing
together
hydrogen atoms. Also, if the electron is not orbiting the proton and
is
in fact just sitting static on the proton, this eliminates the
problem
that one would expect an electron moving about the proton would
radiate
energy. I have seen/heard/read/debated all about the various
explanations of how an electron moving about the proton doesn't
radiate
energy and I find none of it convincing. It usually just boils down
to
"that's how it works stupid" - which isn't much of an explanation.
If
the electron moves about the proton, it must radiate energy plain
and
simple. Since we observe that it doesn't, it must be static in
relation
to the proton as is assumed in the Cubic Model.
When a electron is, in fact, allowed to freely roam about the
proton,
this means it has been ionized and is released from the atom and in
this case, we do observe the electron giving off the expected
energy.
The energy this gives off is governed by the rules of spherical
harmonics which (as near as I can tell) the usual QM formulas are
based
off of. So I think that there is no contradiction between what is
observed and predicted for QM, because what you are dealing with is
the
behavior of electrons which have been ionized and whether an atom
contains a large nucleus (Cubic Model) or a small nucleus
(Rutherford)
doesn't matter since all charges act if they were concentrated in a
point anyways. But once you allow the atom to come back to the
ground
state, the electron mates back up with its proton in a static
position
and everything about QM observations are meaningless since you don't
observe anything happening with an atom at ground state.
One thing I do not understand (and hopefully someone can clarify) is
how you can determine the electron energy levels from the spectrum
released by ionized atoms. It doesn't seem like the line spectra
fall
into patterns that would suggest the electron shell configuration. I
can see how the electron shell levels can be derived directly from
the
ionization data.
Try making use of the Ritz combination principle.
Are you aware of the theorem which says that no system of charges can
be in static equilibrium under the action of electrostatic forces
alone?
Franz
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| User: "" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
04 Feb 2005 08:28:45 PM |
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Try making use of the Ritz combination principle.
OK, the references appear to support that there are energy levels which
can be described n = 2,3,4... etc.
But how does that explain that carbon has a 1s2 2s2 2p2 electron
arrangement? Why do p shells hold 6 electrons? The spectra do not
appear to say anything about how many electrons are in each level - or
do they?
Are you aware of the theorem which says that no system of charges can
be in static equilibrium under the action of electrostatic forces
alone?
Yes, you keep saying that, but this assumes that electric charges are
infinitely small point charges. My model would have to assume that
electric charges take up finite space and would therefore act in a
manner similar to 2 magnets coming together and certainly attracting
magnets are a stable structure.
Franz
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| User: "Franz Heymann" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
05 Feb 2005 12:45:51 AM |
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<franklinhu@yahoo.com> wrote in message
news:1107570525.347894.241530@o13g2000cwo.googlegroups.com...
Try making use of the Ritz combination principle.
OK, the references appear to support that there are energy levels
which
can be described n = 2,3,4... etc.
But how does that explain that carbon has a 1s2 2s2 2p2 electron
arrangement?
Nobody said that it did.
Why do p shells hold 6 electrons?
Angular momentum of 1 can have 3 different spatial orientations.
Multiply by 2 for the 2 possible spin orientations of the electron
The spectra do not
appear to say anything about how many electrons are in each level -
or
do they?
No, not unless the atom is immersed in a weak magnetic field.
Are you aware of the theorem which says that no system of charges
can
be in static equilibrium under the action of electrostatic forces
alone?
Yes, you keep saying that, but this assumes that electric charges
are
infinitely small point charges.
The theorem is totally general
My model would have to assume that
electric charges take up finite space and would therefore act in a
manner similar to 2 magnets coming together and certainly attracting
magnets are a stable structure.
Charges are electric monopoles. There are no known magnetic
monopoles.
However,
A similar theorem holds for static magnetic fields and magnetic
dipoles..
Magnets interacting with one another under the action of magnetostatic
fields alone are never in static equilibrium.
Franz
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| User: "Y.Porat" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
06 Feb 2005 12:58:19 AM |
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and now Frantz
since you are such an expert
i have a little trivial mission:
just show us experimental evidence for a heavy atom
(taken just randomly as representing a havy one)
like say Lead that has 6 shells of electrons
now just in case that my English is to blame i will put it
in specific figures:
just show us all the shells one by one say:
2 8 18 32 18 4
now i i was mistaken about some tetail just show the better
configuration
now a little humble request
if there is no damn real answer to my question just say honsetly
'i have no answer to your question'!
in that case
all the big scince insitutes of this universe are invited to give a
hand top Frantz.
TIA
Y.Porat
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| User: "PD" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
04 Feb 2005 08:41:18 PM |
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wrote:
Try making use of the Ritz combination principle.
OK, the references appear to support that there are energy levels
which
can be described n = 2,3,4... etc.
But how does that explain that carbon has a 1s2 2s2 2p2 electron
arrangement? Why do p shells hold 6 electrons? The spectra do not
appear to say anything about how many electrons are in each level -
or
do they?
The evidence that p shells DO hold 6 electrons is the periodic table of
the elements. The explanation WHY they hold 6 electrons is the angular
momentum quantum numbers available to them, which is not evident in
spectra until you apply an external field.
Are you aware of the theorem which says that no system of charges
can
be in static equilibrium under the action of electrostatic forces
alone?
Yes, you keep saying that, but this assumes that electric charges are
infinitely small point charges. My model would have to assume that
electric charges take up finite space and would therefore act in a
manner similar to 2 magnets coming together and certainly attracting
magnets are a stable structure.
The difference is that magnets cannot be anything other than dipoles.
Dipoles formed from pairs of oppositely charged particles do not have
to be dipoles -- the poles can separate. It is precisely this
difference -- the existence of electrostatic monopoles and the absence
of magnetic monopoles -- that induces the instability. The analogy
fails. Moreover, the theorem does NOT apply only to point charges. It
is often derived for point charges, but it applies to extended charges
as well.
PD
Franz
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| User: "Bjoern Feuerbacher" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
07 Feb 2005 03:34:52 AM |
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wrote:
Try making use of the Ritz combination principle.
OK, the references appear to support that there are energy levels which
can be described n = 2,3,4... etc.
Which references?
But how does that explain that carbon has a 1s2 2s2 2p2 electron
arrangement?
It doesn't.
Why do p shells hold 6 electrons?
Degenerate energy levels: same energy for 6 electrons
with different orbital angular momenta and spin.
Crack open a book on atomic physics. It's all in there.
The spectra do not
appear to say anything about how many electrons are in each level - or
do they?
They tell us that there are 6 electrons with about the same
energy.
Are you aware of the theorem which says that no system of charges can
be in static equilibrium under the action of electrostatic forces
alone?
Yes, you keep saying that, but this assumes that electric charges are
infinitely small point charges.
No. It simply assumes that there are only the attractive electromagnetic
forces between the charges, but no repulsive force which would prevent
them from overlapping.
You know, like the repulsive force which is necessary in your model,
but which has never been observed, despite decades of experiments with
protons and electrons.
My model would have to assume that
electric charges take up finite space and would therefore act in a
manner similar to 2 magnets coming together and certainly attracting
magnets are a stable structure.
For the 20th time: that such a configuration of magnets is stable is
simply due to the repulsive electric force between the atoms which make
up the magnets.
Do you claim that there are no such repulsive electric forces?
Or do you claim that they have not enough effect to explain why
the magnets do not overlap?
Bye,
Bjoern
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| User: "Uncle Al" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
04 Feb 2005 11:27:25 AM |
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wrote:
Morituri-|-Max wrote:
wrote:
I have been working on an atomic model which assumes that atoms are
made up of alternating series of protons and electrons.
Why do you arbitrarily assume this? What have you observed that
would
benefit from this arrangement?
The benefit is simplicity.
[snip crap]
It is a ghastly piece of crap that was empirically dead by 1902. Is
that simple enough for you?
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf
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| User: "Bjoern Feuerbacher" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
07 Feb 2005 03:30:40 AM |
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wrote:
Morituri-|-Max wrote:
wrote:
I have been working on an atomic model which assumes that atoms are
made up of alternating series of protons and electrons.
Why do you arbitrarily assume this? What have you observed that
would benefit from this arrangement?
The benefit is simplicity. I am working towards a model of the atom
which can be understood in purely classical mechanical (billiard ball
etc.) concepts where the "why" something happens can be clearly
observed from the mechanical structure.
You have not really answered the question. What have you *observed*
which would lead you to this hypothesis?
Theories in science are built on observations. Which observation led you
to postulate that atoms are composed of an "alternating series of
protons and electrons"?
For example, the bonds that
form with Oxygen are at a high angle > than 90 degrees.
Huh? Which bonds do you mean? The ones in water?
Why doesn't it
form a linear bond like that seen in CO2?
Because in the water molecule, there are single bonds,
whereas in the CO2 molecule, there are double bonds.
Hint: using the Schroedinger equation, we can actually
*calculate* the bonding angles.
The Cubic Model shows that
the avaliable bonding sites for Oxygen are at 90 degrees to each other
and not 180 degrees as can be found in Carbon.
How does one recognize the "available bonding sites"
in your model?
BTW, above you said "> than 90 degrees"; now it's suddenly
simply "90 degrees". Make up your mind!
It is also simple in terms of what we know about protons and electrons.
A hydrogen atom can be thought of as nothing more than an alternating
series of proton/electron.
And you still have not explained why neutrons, which according
to you have the same structure, behave so differently.
A hydrogen H2 molecule would also be
similar.
I.e. a hydrogen molecule should have a proton at one end
and an electron at the other. I.e. it should not be
symmetric.
Why has this never been observed somehow? For example,
why don't we see a dipole moment for the H2 molecule?
The Cubic Atomic model throws in an additional binding type to
form neutrons,
"additional binding type" explains *nothing*.
It is pure empty handwavy speculation.
I have asked you several times how a different type of
binding would explain the many difference between a H atom
and a neutron. You have not even explained *one* of the
differences up to now!
Hey, I could as well say "apples have the same inner
structure than peaches - they only look different from
the outside because their inner parts are bond differently
together". That would make equally much sense!
but it is the logical extension of just gluing together
hydrogen atoms. Also, if the electron is not orbiting the proton
Err, standard QM does not say that the electron orbits the nucleus.
This has been told to you many times already. When will you finally get it?
and is in fact just sitting static on the proton,
Not possible, unless there is a repulsive force between
a proton and an electron for small distances - and something
like that has never been observed, despite decades of scattering
experiments.
this eliminates the problem
that one would expect an electron moving about the proton would radiate
energy.
This problem was already solved 80 years ago by Schroedinger. You are
a little late.
I have seen/heard/read/debated all about the various
explanations of how an electron moving about the proton doesn't radiate
energy and I find none of it convincing.
What have you read, specifically? Some pop science accounts,
or actual textbooks on atomic physics and/or QM?
It usually just boils down to
"that's how it works stupid" - which isn't much of an explanation.
If you haven't noticed: your own explanation boils down to
the same.
Question to you:
"Why do protons and electrons have hard surfaces and do not
overlap, but bind to each other in a fixed state?"
Your answer: "that's how it works stupid."
If the electron moves about the proton, it must radiate energy plain and
simple.
No. Only if there is a time-dependent electromagnetic
multipole moment, there has to be radiation.
Since we observe that it doesn't, it must be static in relation
to the proton as is assumed in the Cubic Model.
Non sequitur.
When a electron is, in fact, allowed to freely roam about the proton,
this means it has been ionized and is released from the atom and in
this case, we do observe the electron giving off the expected energy.
The energy this gives off is governed by the rules of spherical
harmonics which (as near as I can tell) the usual QM formulas are based
off of.
You really have almost no clue what you are talking about.
What does "spherical harmonics" mean, in your opinion?
Hint: they have almost nothing to do with the ionization energy.
So I think that there is no contradiction between what is
observed and predicted for QM, because what you are dealing with is the
behavior of electrons which have been ionized and whether an atom
contains a large nucleus (Cubic Model) or a small nucleus (Rutherford)
doesn't matter since all charges act if they were concentrated in a
point anyways.
Huh???
Have you ever heard of myonic atoms?
But once you allow the atom to come back to the ground
state, the electron mates back up with its proton in a static position
and everything about QM observations are meaningless since you don't
observe anything happening with an atom at ground state.
Absolute nonsense. Have you ever heard of Stern&Gerlach,
for starters?
One thing I do not understand (and hopefully someone can clarify) is
how you can determine the electron energy levels from the spectrum
released by ionized atoms. It doesn't seem like the line spectra fall
into patterns that would suggest the electron shell configuration. I
can see how the electron shell levels can be derived directly from the
ionization data.
Sorry, I don't understand you here. The whole paragraph looks
contradictory to me.
Bye,
Bjoern
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| User: "" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
20 Feb 2005 01:39:29 AM |
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Bjoern Feuerbacher wrote:
franklinhu@yahoo.com wrote:
Morituri-|-Max wrote:
franklinhu@yahoo.com wrote:
I have been working on an atomic model which assumes that atoms
are
made up of alternating series of protons and electrons.
Why do you arbitrarily assume this? What have you observed that
would benefit from this arrangement?
The benefit is simplicity. I am working towards a model of the atom
which can be understood in purely classical mechanical (billiard
ball
etc.) concepts where the "why" something happens can be clearly
observed from the mechanical structure.
You have not really answered the question. What have you *observed*
which would lead you to this hypothesis?
Theories in science are built on observations. Which observation led
you
to postulate that atoms are composed of an "alternating series of
protons and electrons"?
The most simple and fundamental of observations that a proton is
attracted to an electron. If these 2 types of particles were to be put
next to each other, it is intuitive that they would stick together like
2 magnets. The most logical array that produces the most neutral and
low energy arrangement would be a alternating array.
Now you say that this is not a stable arrangement because I have not
explained what is the force that keeps the electron and proton separate
like how magnets are repelled by their electrically charged outer
surfaces. I would argue that there actually is no "force" separating
the proton and electron. Rather, that the reason why they do not merge
into exactly the same place in space is due to the fundamental property
of space that objects which fill space cannot both occupy the same
space at the same time. I think this is a rather intuitively obvious
statement that 2 objects cannot occupy the
same place in space. So if you have 2 billiard balls and you push them
together, you would argue that the negative replusion of the atoms is
what is keeping the balls from merging into each other. I would argue
that there is no such replusion going on. You could put 2 billiard
balls right next to each other (touching at the atomic level) and
measure zero repulsive force between the 2. If there were such a
repusive force keeping the balls apart, then you'd might think that
there would be a point where if you applied enough force, this could be
overcome and the surfaces would merge past each other. But this doesn't
happen, the ball would rather shatter than merge. I would
argue that protons and electrons are as "hard" as a billiard ball even
at the atomic level. Now you can choose not to believe something that
can be intuitively demonstrated at macroscopic level, but I think it
far more likely than believing something which cannot be demonstrated
at the macroscopic level. My goals are to explain everything in terms
which can be demonstrated at a macroscopic level. The concept that 2
particles of finite size cannot occupy the same space no matter what
the attracting force between them is
something that should be intuitively obvious to the most causal
observer.
For example, the bonds that
form with Oxygen are at a high angle > than 90 degrees.
Huh? Which bonds do you mean? The ones in water?
I would be referring to most compounds of oxygen which contain 2 other
atoms like water. Based on information in www.webelements.com, these
types of compounds form bonds in the vicinity of 90 degrees (like
around 107).
Why doesn't it
form a linear bond like that seen in CO2?
Because in the water molecule, there are single bonds,
whereas in the CO2 molecule, there are double bonds.
I'm not sure if CO2 forms double bonds - I would presume single bonds
based on lewis-dot diagrams. But even if it did, why would a double
bond indicate a linear bond?
Hint: using the Schroedinger equation, we can actually
*calculate* the bonding angles.
Do you have any web references on this?
The Cubic Model shows that
the avaliable bonding sites for Oxygen are at 90 degrees to each
other
and not 180 degrees as can be found in Carbon.
How does one recognize the "available bonding sites"
in your model?
Bonding sites are identified as those parts of the atom which cannot be
part of an alpha particle (or helium). For example Lithium can be
though
of being made out of a helium and a deturium atom. The deuturium cannot
be part of a second helium particle, so it is avaliable for bonding.
BTW, above you said "> than 90 degrees"; now it's suddenly
simply "90 degrees". Make up your mind!
The actual bond angle is a product of angle formed by the atom (90
degrees) and the amount of repulsion between the attached atoms. The
repulsion between the attached atoms (like hydrogen in water), do push
the bond further apart than 90 degrees.
It is also simple in terms of what we know about protons and
electrons.
A hydrogen atom can be thought of as nothing more than an
alternating
series of proton/electron.
And you still have not explained why neutrons, which according
to you have the same structure, behave so differently.
This is correct. The fundamental difference bewteen hydrogen atoms,
neutrons
and neutrinos must still be postulated.
A hydrogen H2 molecule would also be
similar.
I.e. a hydrogen molecule should have a proton at one end
and an electron at the other. I.e. it should not be
symmetric.
Why has this never been observed somehow? For example,
why don't we see a dipole moment for the H2 molecule?
I would predict that an H2 molecule lines up as an alternating array
and everything cancels each other out.
I haven't been able to find any data for the dipole moment for a
solitary H atom, but you can see that the magnetic moment is
quite large, indicating that this may not be a symettric
arrangment.
The Cubic Atomic model throws in an additional binding type to
form neutrons,
"additional binding type" explains *nothing*.
It is pure empty handwavy speculation.
I have asked you several times how a different type of
binding would explain the many difference between a H atom
and a neutron. You have not even explained *one* of the
differences up to now!
We can't adequately describe what gravity is either, but it
doesn't stop us from doing useful work by only knowing "how"
it works. While it would be better to be able to explain these with
precision, such differences do not prevent the further
development of the cubic theory while these properties
remain postulated.
Hey, I could as well say "apples have the same inner
structure than peaches - they only look different from
the outside because their inner parts are bond differently
together". That would make equally much sense!
but it is the logical extension of just gluing together
hydrogen atoms. Also, if the electron is not orbiting the proton
Err, standard QM does not say that the electron orbits the nucleus.
This has been told to you many times already. When will you finally
get it?
I was referring to the old problem which QM was supposed to solve by
saying we don't know what the electron is really doing.
and is in fact just sitting static on the proton,
Not possible, unless there is a repulsive force between
a proton and an electron for small distances - and something
like that has never been observed, despite decades of scattering
experiments.
As I explained above, there is NO repulsive force. This arrangement
occurs as a fundamental principle of solid objects in space.
this eliminates the problem
that one would expect an electron moving about the proton would
radiate
energy.
This problem was already solved 80 years ago by Schroedinger. You are
a little late.
By saying we cannot describe the motion of the electron about the
nucleus
hardly seems to be an answer to me.
I have seen/heard/read/debated all about the various
explanations of how an electron moving about the proton doesn't
radiate
energy and I find none of it convincing.
What have you read, specifically? Some pop science accounts,
or actual textbooks on atomic physics and/or QM?
It usually just boils down to
"that's how it works stupid" - which isn't much of an explanation.
If you haven't noticed: your own explanation boils down to
the same.
Question to you:
"Why do protons and electrons have hard surfaces and do not
overlap, but bind to each other in a fixed state?"
Your answer: "that's how it works stupid."
My answer, look at what you see in the macroscopic world, apply that to
the atomic world. Doesn't seem like too much of a leap whereas QM would
require to to completely ignore the macroscopic world. There is a
difference.
If the electron moves about the proton, it must radiate energy
plain and
simple.
No. Only if there is a time-dependent electromagnetic
multipole moment, there has to be radiation.
Since we observe that it doesn't, it must be static in relation
to the proton as is assumed in the Cubic Model.
Non sequitur.
Hardly, if you cannot describe the motion of the electron with some
precision you cannot tell whether it should be radiating or not. There
are definitely
motions which would radiate, so this would favor a model which is
static in
configuration.
When a electron is, in fact, allowed to freely roam about the
proton,
this means it has been ionized and is released from the atom and in
this case, we do observe the electron giving off the expected
energy.
The energy this gives off is governed by the rules of spherical
harmonics which (as near as I can tell) the usual QM formulas are
based
off of.
You really have almost no clue what you are talking about.
What does "spherical harmonics" mean, in your opinion?
Sperical harmonics describes the motion of a particle around an
attractive point source. This is exactly the case that we have for a
hydrogen atom where the electron has been ionized from the atom and is
freely roaming the vicinity of the proton. From
http://www.dartmouth.edu/~chem81/thps/Ylm.html
The Spherical Harmonic functions Yl,m are the wavefunctions for any
particle that is free to move in the spherical polar angles theta and
phi (i.e., that has no dependence on these angles in the particle's
potential energy function, as in the hydrogen atom).
The equations and plots for spherical harmonics is exactly the same as
those
given for the hydrogen orbitals. I really couldn't find anything that
would suggest that the Schroedinger equations were doing anything
different than what spherical harmonics would suggest.
Hint: they have almost nothing to do with the ionization energy.
Of course it doesn't have anything to do with ionziation energy. But
what I am
saying is that the atom must be ionized in order for this situation
to apply.
So I think that there is no contradiction between what is
observed and predicted for QM, because what you are dealing with is
the
behavior of electrons which have been ionized and whether an atom
contains a large nucleus (Cubic Model) or a small nucleus
(Rutherford)
doesn't matter since all charges act if they were concentrated in a
point anyways.
Huh???
This is my big point! The predictions made by QM (so far as emitted
spectra
are concerned) are absolutely correct because they are simply
describing
what a free electron would do in the vicinity of the hydrogen's proton
in
a classical mechanical sense. When you discharge electricity through
hydrogen,
you get ionized hydrogen atoms and all of the resulting spherical
harmonic
motion of the flowing electrons around them produce the spectra that
are observed. This is a wildly chaotic situation and the math required
to
describe this is justified due to this situation.
My even bigger point is that this can happen even if you accept the
cubic
model as fact. This is because as electrons are ionized, they don't
care
if the atom is a tiny spec or a big cubic model atom. It only cares
about
the net charge coming from the atom to determine its behavior according
to spherical harmonics.
Have you ever heard of myonic atoms?
Nope, can't seem to find any web references either - can you point me
in the right direction?
But once you allow the atom to come back to the ground
state, the electron mates back up with its proton in a static
position
and everything about QM observations are meaningless since you
don't
observe anything happening with an atom at ground state.
Absolute nonsense. Have you ever heard of Stern&Gerlach,
for starters?
OK, Stern & Gerlach is part of QM which justifies to concept of spin
without
the atom in the ionized state. However, this only justifies spin, it
does
not explain spectra or anything about the bulk structure of an atom. I
would
have to clarify that everything in QM regarding spectra is meaningless
when applied to atoms in their ground state. Atoms in the ionized state
are not representative of the atom at the ground state. In particular,
a hydrogen atom at the ground state would be presumed to be a proton
surrounded by a spherical electron cloud 1s arrangement. However, this
is only a presumption. Everything that tells you the QM structure can
only be derived when the atom is ionized. The ground state atom is
still a black hole.
The Stern & Gerlach experiment does however, make some sense in the
cubic model. There is a strange phenomenon whereby if you pass a beam
of atoms through the experiment,it splits it into 2 beams, lets call
them + and -. If you then take the + beam and you run it through the
same experiment oriented at 90 degree angles to the first experiment,
you find that it again splits into a + and - beam.
This is described by the web site: http://www.weylmann.com/spin.htm
How can this be? If the beam was entirely + to begin with, how could it
then
split back into + and - beams when there was no - character spin
electrons
to start? The web site simply states that there is no classical analogy
and
that it simply happens as a matter of quantum mechanics and that the
transition simply occurs. That's not much of an explanation.
However, if you consider the cubic model, it says a hydrogen atom is a
linear
arrangement of proton and electron. In some ways it acts as a tiny bar
magnet.
We know from NMR that when a hydrogen atom is put into a strong
maganetic field, it will line up in 1 of 2 ways, either along the
magnetic lines or against it. This corresponds to the proton pointing
either up or down in the magnetic lines of force.
If we run a beam of randomly oriented atoms through the experiment,
they will
immediately align themselves with the magnetic lines of force (hydrogen
has a
large magnetic moment) and about half will have the proton point up and
the other half have the proton point down. Now I am a bit sketchy as to
whether the protons would then be immediately attracted to the poles of
the magnet, but I am going to presume that they are. This may have to
do with the asymmetric magnet arrangments. This is what causes the beam
to only split into 2. The magnetic field somehow polarizes the hydrogen
atoms and they are drawn equally to the opposite poles of the magnet.
Now if you pass the beam through the experiment oriented in the same
direction again, you see that if you have a + beam where the protons
point up, they will come out the same way with no - beam (which would
correspond to the protons pointing down). However, if you put the +
beam into the experiment oriented at 90 degree angles to the first, you
will have the atoms go into the experiment in a horizontal orientation
with the proton neither pointing up or down. At this point, the atoms
will reorient themselves to the magnetic field by going from horizontal
to vertical, and will randomly have the proton point up or down. This
causes the beam to split again into both + and - character beams
eventhough, there were only + character particles to begin with. I
think this is a far more likely explanation for how this experiment
works rather than attributing this to "electron spin".
.
|
|
|
| User: "Bjoern Feuerbacher" |
|
| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
21 Feb 2005 08:24:32 AM |
|
|
wrote:
Bjoern Feuerbacher wrote:
wrote:
[snip]
You have not really answered the question. What have you *observed*
which would lead you to this hypothesis?
Theories in science are built on observations. Which observation led
you
to postulate that atoms are composed of an "alternating series of
protons and electrons"?
The most simple and fundamental of observations that a proton is
attracted to an electron.
That's by far not sufficient to lead to an "alternating series of
protons and electrons".
If these 2 types of particles were to be put
next to each other, it is intuitive that they would stick together like
2 magnets.
No,there is nothing at all intuitive about that. Why on earth should
two (almost) elementary particles behave like two object we know in
the macroworld? Especially in light of the fact that we already have
tons of evidence that they don't?
Additionally, a small hint: it is also intuitive that the sun goes
around the earth. And that heavy things fall faster than light ones.
[snip]
Now you say that this is not a stable arrangement because I have not
explained what is the force that keeps the electron and proton separate
like how magnets are repelled by their electrically charged outer
surfaces.
Indeed.
I would argue that there actually is no "force" separating
the proton and electron.
They attract each other due to the electrostatic force. Hence there
is an acceleration (F=ma, you know?). So, if there is no counter force,
nothing would stop them from coming closer and closer to each other,
until they are at exactly the same place.
Rather, that the reason why they do not merge
into exactly the same place in space is due to the fundamental property
of space that objects which fill space cannot both occupy the same
space at the same time.
1) What's your evidence that this is a "fundamental property" of space?
2) That does not help you with the force problem mentioned above. The
best you could do is claiming that due to this fundamental property,
a force emerges (out of nowhere) which keeps them from overlapping.
I think this is a rather intuitively obvious
statement that 2 objects cannot occupy the
same place in space.
It may be intuitively obvious in the macroworld. But in the microworld,
it's wrong, plain and simple.
See what I said about intuition just above.
So if you have 2 billiard balls and you push them
together, you would argue that the negative replusion of the atoms is
what is keeping the balls from merging into each other.
Indeed.
I would argue
that there is no such replusion going on.
Err, it is a simple fact that there are electrons in the atoms of the
billiard balls, and that there is a repulsive force between them.
Which of these two facts do you dispute?
You could put 2 billiard
balls right next to each other (touching at the atomic level) and
measure zero repulsive force between the 2.
Is this a prediction by your model?
Have you ever heard of the Lennard-Jones potential?
<http://www.fisica.uniud.it/~ercolessi/md/md/node15.html>
Hint: there is actual *evidence* that this describes nature well.
For details, look e.g. into books on solid-state physics.
If there were such a
repusive force keeping the balls apart, then you'd might think that
there would be a point where if you applied enough force, this could be
overcome and the surfaces would merge past each other.
That would be a non sequitur, since the force *increases* if the
distance becomes smaller.
But this doesn't
happen, the ball would rather shatter than merge.
Because the force needed is so great that it overcomes the binding
force inside the balls.
However, e.g. in nuclear fusion, exactly that is achieved: atoms overlap
so much that their cores come into contact and can merge.
I would
argue that protons and electrons are as "hard" as a billiard ball even
at the atomic level.
Try to understand the problem with the non-existent force, please.
Now you can choose not to believe something that
can be intuitively demonstrated at macroscopic level,
Indeed. Because it has been experimentally shown that on the microscopic
level, particles behave differently. You choose to ignore that.
but I think it
far more likely than believing something which cannot be demonstrated
at the macroscopic level.
There are lots of things which can't be demonstrated neatly in a lab,
e.g. nuclear fusion in stars. Do you think all of these things don't
happen?
Hey, due to the atmosphere of the earth, it is even not possible to
demonstrate that heavy things falls as fast as light things (only with
some experimental equipment providing a good vacuum)! So, do you also
deny that?
My goals are to explain everything in terms
which can be demonstrated at a macroscopic level.
Then, as I have pointed out lots of times, you should start with
explaining the results of the experiments which convinced that that
this is *not* possible. And with "explaining" I do not mean some
handwavy speculations, but an actual *quantitative* calculation showing
that your model can reproduce the results as least as well as standard
physics.
* Rutherford scattering (what you have done so far is far from sufficient)
* hydrogen spectrum (in principle lots of spectra, but I'll grant
you to explain only the simplest one)
* Stern-Gerlach
* Photo effect
* Compton effect
* Blackbody spectrum
* diffraction of matter particles (electrons, C60, etc.)
The concept that 2
particles of finite size cannot occupy the same space no matter what
the attracting force between them is
something that should be intuitively obvious to the most causal
observer.
I'm quite sure that the last part is a quote (if you correct the
"casual"), but I can't find out by whom...
And, again: consider what I said about "intuition" just above.
For example, the bonds that
form with Oxygen are at a high angle > than 90 degrees.
Huh? Which bonds do you mean? The ones in water?
I would be referring to most compounds of oxygen which contain 2 other
atoms like water. Based on information in www.webelements.com, these
types of compounds form bonds in the vicinity of 90 degrees (like
around 107).
Why doesn't it
form a linear bond like that seen in CO2?
Because in the water molecule, there are single bonds,
whereas in the CO2 molecule, there are double bonds.
I'm not sure if CO2 forms double bonds
It does.
- I would presume single bonds based on lewis-dot diagrams.
Huh? Please elaborate.
But even if it did, why would a double
bond indicate a linear bond?
My explanation wasn't entirely right: it is due to the different
orbitals in oxygen and carbon. Carbon can have so-called "hybrid
orbitals" which enable it to make a linear bond with two oxygen atoms,
whereas oxygen atoms can make only bonds at an angle with two other
atoms.
Standard molecular physics. Look it up in some textbooks.
Hint: using the Schroedinger equation, we can actually
*calculate* the bonding angles.
Do you have any web references on this?
A webpage of one of the programs used for molecular calculations:
<http://wserv1.dl.ac.uk/CCP/CCP1/docs/>
Essentially, what one does do here is varying the positions of the
nuclei until the energy of the molecule is minimal (where on gets the
energies using the Schroedinger equation).
This is one of several programs; others are e.g. Molcas or Gaussian.
Try googling.
The crucial point is now: these programs are used routinely, day after
day, year after year, for calculating properties of molecules. And the
results are essentially always compared with what is experimentally
known (unless one makes a prediction which has still to be checked
experimentally, obviously). There are several scientific journals
devoted almost exclusively to such calculations and experiments,
e.g. Journal of Chemical Physics, Journal of Physical Chemistry,
Physical Review A, Journal of Physics A etc. (I think there are at
least 20 of them!) Altogether, they publish thousands of articles
per year. And as far as I know, there had been no case where the
predictions disagreed with the observations...
I don't know if there are any of these articles free on the web for
laymen; most journals have articles online, but only free for university
members. But you could go to a local university library and try looking
up the journals in printed form.
The Cubic Model shows that
the avaliable bonding sites for Oxygen are at 90 degrees to each
other and not 180 degrees as can be found in Carbon.
How does one recognize the "available bonding sites"
in your model?
Bonding sites are identified as those parts of the atom which cannot be
part of an alpha particle (or helium).
Why are these the bonding sites?
For example Lithium can be though
of being made out of a helium and a deturium atom. The deuturium cannot
be part of a second helium particle, so it is avaliable for bonding.
Can your model also explain that some elements can bond a *different*
number of other atoms? E.g. that carbon can bond two oxygen atoms,
or one oxygen atom, a HO group and a H atom, or four H atoms? Or that
iron occurs as FeO as well as Fe2O3?
BTW, above you said "> than 90 degrees"; now it's suddenly
simply "90 degrees". Make up your mind!
The actual bond angle is a product of angle formed by the atom (90
degrees) and the amount of repulsion between the attached atoms.
The repulsion between the attached atoms (like hydrogen in water), do
push the bond further apart than 90 degrees.
So there *is* repulsion between nearby atoms? Just above, when talking
about why material objects can't overlap, you apparently denied this
repulsion.
Could you please make up your mind?
[snip]
A hydrogen H2 molecule would also be
similar.
I.e. a hydrogen molecule should have a proton at one end
and an electron at the other. I.e. it should not be
symmetric.
Why has this never been observed somehow? For example,
why don't we see a dipole moment for the H2 molecule?
I would predict that an H2 molecule lines up as an alternating array
and everything cancels each other out.
Huh? Sorry, but if a H2 molecule looks like that:
e-p-e-p
or
p-e-p-e,
i.e. an alternating array, lined up, it should have an electric dipole
moment. Nothing can cancel out there-
I haven't been able to find any data for the dipole moment for a
solitary H atom, but you can see that the magnetic moment is
quite large, indicating that this may not be a symettric
arrangment.
Where did you get the magnetic moment of the H2 molecule from, and
why does this indicate that this is not a "symmetric arrangement"?
[snip]
I have asked you several times how a different type of
binding would explain the many difference between a H atom
and a neutron. You have not even explained *one* of the
differences up to now!
We can't adequately describe what gravity is either,
We can. Spacetime curvature.
[snip]
and is in fact just sitting static on the proton,
Not possible, unless there is a repulsive force between
a proton and an electron for small distances - and something
like that has never been observed, despite decades of scattering
experiments.
As I explained above, there is NO repulsive force.
As I explained lots of times now, that is not possible.
If there is only an attractive force, there has to be an acceleration.
If there is an acceleration, the two particles can come arbitrarily
close to each other, even overlapping.
Read up on "constraint forces". In classical mechanics, if one wants
to describe something which can only move in a certain region (e.g. on
the table etc.), one has to introduce forces which keep the object in
the desired region. Without them, it simply does not work.
Notice that in classical mechanics, no one explains where the force
comes from. But it is inevitable that they are *there* in order to
explain why objects don't go through each other.
If you dispute that stuff, you are disputing Newtonian mechanics!!!
This arrangement
occurs as a fundamental principle of solid objects in space.
That postulate does *not* enable you to get rid of the required force.
this eliminates the problem
that one would expect an electron moving about the proton would
radiate energy.
This problem was already solved 80 years ago by Schroedinger. You are
a little late.
By saying we cannot describe the motion of the electron about the
nucleus hardly seems to be an answer to me.
But we are not saying that.
I have seen/heard/read/debated all about the various
explanations of how an electron moving about the proton doesn't
radiate energy and I find none of it convincing.
What have you read, specifically? Some pop science accounts,
or actual textbooks on atomic physics and/or QM?
Would you please answer that?
It usually just boils down to
"that's how it works stupid" - which isn't much of an explanation.
If you haven't noticed: your own explanation boils down to
the same.
Question to you:
"Why do protons and electrons have hard surfaces and do not
overlap, but bind to each other in a fixed state?"
Your answer: "that's how it works stupid."
My answer, look at what you see in the macroscopic world, apply that to
the atomic world.
An ignore tons of experiments which show that the microworld works
different.
Doesn't seem like too much of a leap whereas QM would
require to to completely ignore the macroscopic world.
Wrong. QM explains how the usual behaviour of the macroscopic world
emerges from the behaviour of the microscopic world.
And QM does not simply ask you to take for faith that the microworld
works differently. It actually *shows* this with *experiments*.
For the 10th time: if you want to start your model by assuming that
the microworld works in the same way as the macroworld, you *first*
have to explain all the experimental results which show otherwise.
See above for a short, not complete, list. Good luck.
Is this argument *really* so hard to understand?
There is a difference.
Indeed, there is a big difference. QM goes where the experimental
evidence leads. You go where your intuition leads and ignore the evidence.
Say, do you think physicists have made up QM willy-nilly, out of thin
air, just because they like maths so much, or what??? People *struggled*
for *decades* trying to explain the observations with classical
mechanics. Finally, they had grudgingly to admit that this is not
possible. And now you come along, someone who does not even know 99%
of the evidence which led to the development of QM, and think you have
found an "obvious, intuitive" solution.
Don't you think this sounds somehow strange?
If the electron moves about the proton, it must radiate energy
plain and simple.
No. Only if there is a time-dependent electromagnetic
multipole moment, there has to be radiation.
Did you get that?
Since we observe that it doesn't, it must be static in relation
to the proton as is assumed in the Cubic Model.
Non sequitur.
Hardly, if you cannot describe the motion of the electron with some
precision
We can. Look at the solutions of the Schroedinger equation. It contains
everything about the motion of the electron which one ever has to know,
and which one even *can* even know.
you cannot tell whether it should be radiating or not.
Wrong. It is enough to know if there is a time-dependent multipole
moment or not. We can calculate that. There is none.
There are definitely
motions which would radiate, so this would favor a model which is
static in configuration.
Wrong. All you can say is that the multipole moments do not change.
That does not favor a static model more than dynamic ones.
[snip]
What does "spherical harmonics" mean, in your opinion?
Sperical harmonics describes the motion of a particle around an
attractive point source.
Wrong.
Thanks for confirming my suspicion.
This is exactly the case that we have for a
hydrogen atom where the electron has been ionized from the atom and is
freely roaming the vicinity of the proton.
Wrong. Motions of an electron in the vicinity of a proton are in general
*not* described by one single spherical harmonics. You need linear
combinations of them, involving also radial functions.
From
http://www.dartmouth.edu/~chem81/thps/Ylm.html
The Spherical Harmonic functions Yl,m are the wavefunctions for any
particle that is free to move in the spherical polar angles theta and
phi (i.e., that has no dependence on these angles in the particle's
potential energy function, as in the hydrogen atom).
Sorry to tell you, but that sentence is wrong. The spherical harmonics
are only the *angular* part of the wavefunction. The are not the *whole*
wavefunction.
The equations and plots for spherical harmonics is exactly the same as
those given for the hydrogen orbitals.
Wrong again.
Again, the spherical harmonics give only the *angular* part of the wave
function. For obtaining the hydrogen orbitals, you also need the
*radial* part.
I really couldn't find anything that
would suggest that the Schroedinger equations were doing anything
different than what spherical harmonics would suggest.
Spherical harmonics do not suggest anything. You make no sense.
Hint: they have almost nothing to do with the ionization energy.
Of course it doesn't have anything to do with ionziation energy. But
what I am
saying is that the atom must be ionized in order for this situation
to apply.
Then you show only that you still haven't the faintest clue of what
spherical harmonics actually are.
[snip]
This is my big point! The predictions made by QM (so far as emitted
spectra
are concerned) are absolutely correct because they are simply
describing
what a free electron would do in the vicinity of the hydrogen's proton
in a classical mechanical sense.
Err, no, they don't. Why on earth do you think so?
Classical mechanics makes *totally* false predictions for the behaviour
of an electron in the vicinity of a proton.
When you discharge electricity through hydrogen,
you get ionized hydrogen atoms and all of the resulting spherical
harmonic
motion of the flowing electrons around them produce the spectra that
are observed.
"spherical harmonic motion" makes no sense at all.
And, BTW, spherical harmonics have nothing to do with classical
mechanics (of point particles).
This is a wildly chaotic situation and the math required to
describe this is justified due to this situation.
Err, what on earth is chaotic about an electron flying around a proton?
You could as well say that for describing the motions of planets
or comets, we need QM!
My even bigger point is that this can happen even if you accept the
cubic
model as fact. This is because as electrons are ionized, they don't
care
if the atom is a tiny spec or a big cubic model atom.
Wrong. Read up on "multipole moments". It is *very* important for
the electric field of a nucleus which shape it has, and this is
*measurable*!
It only cares about
the net charge coming from the atom to determine its behavior according
to spherical harmonics.
And what on earth is "behaviour according to spherical harmonics"
supposed to mean, and why should the QM description be right for that
case?
Have you ever heard of myonic atoms?
Nope, can't seem to find any web references either - can you point me
in the right direction?
Try "muonic atoms". Sorry for the typo. I used the German term
"Myon" instead of the English term "myon".
You could also read up on determining quadropole moments of nuclei.
But once you allow the atom to come back to the ground
state, the electron mates back up with its proton in a static
position
and everything about QM observations are meaningless since you
don't
observe anything happening with an atom at ground state.
Absolute nonsense. Have you ever heard of Stern&Gerlach,
for starters?
OK, Stern & Gerlach is part of QM which justifies to concept of spin
without
the atom in the ionized state. However, this only justifies spin,
My point was only that your assertion above "you don't
observe anything happening with an atom at ground state"
was wrong.
it does
not explain spectra or anything about the bulk structure of an atom.
Depends on what you mean with "bulk structure".
And, BTW, one can actually examine the structure of atoms and molecules
even in the ground state: by scattering, by atomic force microscopy, etc.
E.g. look here:
<http://www.rzuser.uni-heidelberg.de/~bfeuerba/chargedensity.jpg>
These are the measured charge densities for two organic (aromatic)
molecules. Nicely consistent with the predictions of QM. I don't see
how your model could explain that.
I would
have to clarify that everything in QM regarding spectra is meaningless
when applied to atoms in their ground state.
Since spectral energies are often the differences between the energy
of an excited state and the energy of the ground state, I don't see how
that could be possible.
Atoms in the ionized state
are not representative of the atom at the ground state.
But in order to get the spectral energies, you need to describe *both*
of the states with QM.
Also, QM predicts ionization energies for atoms in their ground states.
In particular,
a hydrogen atom at the ground state would be presumed to be a proton
surrounded by a spherical electron cloud 1s arrangement.
Congratulations, you got that roughly right!
However, this is only a presumption.
A "presumption" which agrees with every observation so far.
Based on this "presumption", we e.g. calculate the ionization energy
of hydrogen correctly.
Please demonstrate that without using this assumption, one can also
get the ionization energy correctly. If you can't do that, shut up.
Everything that tells you the QM structure can
only be derived when the atom is ionized.
Wrong.
The ground state atom is still a black hole.
Wrong.
The Stern & Gerlach experiment does however, make some sense in the
cubic model. There is a strange phenomenon whereby if you pass a beam
of atoms through the experiment, it splits it into 2 beams
Actually, a beam of atoms with total electronic angular momentum 1/2.
For other types of atoms, the number of beams will be different.
Did you know that?
lets call them + and -.
Yes, and that's all there is to the experiment. All that follows is
just an addition in order to illustrate some other concepts.
If you then take the + beam and you run it through the
same experiment oriented at 90 degree angles to the first experiment,
you find that it again splits into a + and - beam.
Err, you shouldn't label the two new beams + and - again. These
are *different* types of beams. Maybe use x+ and x- for the first
two and y+ and y- for the second two.
This is described by the web site: http://www.weylmann.com/spin.htm
How can this be? If the beam was entirely + to begin with, how could it
then split back into + and - beams
It doesn't!
The x+ beam splits into an y+ and y- beam!!!
when there was no - character spin electrons to start?
Your notation only muddies the water instead of explaining anything.
The web site simply states that there is no classical analogy
Indeed.
and that it simply happens as a matter of quantum mechanics and that the
transition simply occurs.
There is not really a "transition" involved here.
That's not much of an explanation.
Exactly equal to your postulate "things can't overlap".
However, if you consider the cubic model, it says a hydrogen atom is a
linear
arrangement of proton and electron.
Dipole moment...?
In some ways it acts as a tiny bar magnet.
How? Why?
We know from NMR that when a hydrogen atom is put into a strong
maganetic field, it will line up in 1 of 2 ways, either along the
magnetic lines or against it.
We know this already from classical electrodynamics, thank you.
This corresponds to the proton pointing
either up or down in the magnetic lines of force.
If we run a beam of randomly oriented atoms through the experiment,
they will
immediately align themselves with the magnetic lines of force (hydrogen
has a large magnetic moment)
In no way "immediately". This will take some time. At that destroys
your whole argument (see below).
and about half will have the proton point up and
the other half have the proton point down. Now I am a bit sketchy as to
whether the protons would then be immediately attracted to the poles of
the magnet, but I am going to presume that they are. This may have to
do with the asymmetric magnet arrangments. This is what causes the beam
to only split into 2. The magnetic field somehow polarizes the hydrogen
atoms and they are drawn equally to the opposite poles of the magnet.
Sorry, this simply does not work.
One can calculate in electrodynamics how such little magnets would
behave in a Stern-Gerlach experiment. The result is that due to
the initial random orientation, they will be differently deflected
between the magnets (it takes a different amount of time until they
are precisely aligned for different atoms, and therefore the forces on
them are different). You won't get only two beams - you will get
a whole continuous set of beams. The result will not be two neat points
on the screen, but a line.
Again, if you dispute that, you are arguing against *classical* physics.
For the 10th time, I think, I recommend Styer's "The strange world of
QM" to you, where all of that is explained in detail.
Now if you pass the beam through the experiment oriented in the same
direction again, you see that if you have a + beam where the protons
point up, they will come out the same way with no - beam (which would
correspond to the protons pointing down). However, if you put the +
beam into the experiment oriented at 90 degree angles to the first, you
will have the atoms go into the experiment in a horizontal orientation
with the proton neither pointing up or down. At this point, the atoms
will reorient themselves to the magnetic field by going from horizontal
to vertical, and will randomly have the proton point up or down. This
causes the beam to split again into both + and - character beams
eventhough, there were only + character particles to begin with.
Again, a whole continuum of beams, not only two. A line, not two dots.
I think this is a far more likely explanation for how this experiment
works rather than attributing this to "electron spin".
Unfortunately for you, this explanation simply does not work.
Bye,
Bjoern
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| User: "" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
27 Feb 2005 12:43:46 AM |
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Bjoern Feuerbacher wrote:
franklinhu@yahoo.com wrote:
Bjoern Feuerbacher wrote:
[snip]
A hydrogen H2 molecule would also be
similar.
I.e. a hydrogen molecule should have a proton at one end
and an electron at the other. I.e. it should not be
symmetric.
Why has this never been observed somehow? For example,
why don't we see a dipole moment for the H2 molecule?
I would predict that an H2 molecule lines up as an alternating
array
and everything cancels each other out.
Huh? Sorry, but if a H2 molecule looks like that:
e-p-e-p
or
p-e-p-e,
i.e. an alternating array, lined up, it should have an electric
dipole
moment. Nothing can cancel out there-
I didn't mean a linear array, I mean the most compact 3-d form which
would be:
e-p
p-e
I haven't been able to find any data for the dipole moment for a
solitary H atom, but you can see that the magnetic moment is
quite large, indicating that this may not be a symettric
arrangment.
Where did you get the magnetic moment of the H2 molecule from, and
why does this indicate that this is not a "symmetric arrangement"?
See http://www.webelements.com/webelements/elements/text/H/isot.html
Something must be causing the magnetic moment - something that is
perfectly
symettric couldn't possibly exhibit a particular orientation in a
magnetic
field. On the other hand, Helium, is perfectly symetrically in the
cubic
model and shows zero magnetic moment.
[snip]
What does "spherical harmonics" mean, in your opinion?
Sperical harmonics describes the motion of a particle around an
attractive point source.
Wrong.
Thanks for confirming my suspicion.
OK, then what does describe the motion of a particle around an
attractive
point source - if spherical harmonics doesn't do this? Suppose I am in
space
outside the effects of gravity and a spray negatively charged pellets
at a positvely
charged shere. Is there some branch of physics which describes the
motion
of the pellets around the shere?
I am confused beause the diagrams assocated with sherical harmonics
such as:
http://www.uniovi.es/qcg/harmonics/harmonics.html
These are identical to those plots showing electron orbitals like at:
http://www.shef.ac.uk/chemistry/orbitron/index.html
So is it the same or different?
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| User: "Bjoern Feuerbacher" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
28 Feb 2005 07:23:48 AM |
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wrote:
Bjoern Feuerbacher wrote:
wrote:
Bjoern Feuerbacher wrote:
[snip]
A hydrogen H2 molecule would also be
similar.
I.e. a hydrogen molecule should have a proton at one end
and an electron at the other. I.e. it should not be
symmetric.
Why has this never been observed somehow? For example,
why don't we see a dipole moment for the H2 molecule?
I would predict that an H2 molecule lines up as an alternating
array and everything cancels each other out.
Huh? Sorry, but if a H2 molecule looks like that:
e-p-e-p
or
p-e-p-e,
i.e. an alternating array, lined up, it should have an electric
dipole moment. Nothing can cancel out there-
I didn't mean a linear array, I mean the most compact 3-d form which
would be:
e-p
p-e
1) You said "line up", so it's no wonder I assumed you mean a linear
array.
2) This arrangement would have no dipole moment, true - but a
quadrupole moment.
I haven't been able to find any data for the dipole moment for a
solitary H atom, but you can see that the magnetic moment is
quite large, indicating that this may not be a symettric
arrangment.
Where did you get the magnetic moment of the H2 molecule from, and
why does this indicate that this is not a "symmetric arrangement"?
See http://www.webelements.com/webelements/elements/text/H/isot.html
They only list the magnetic moment of the hydrogen atom (or only for the
nuclei? That's not entirely clear...), not the one of the H2 molecule,
as far as I can see.
Something must be causing the magnetic moment - something that is
perfectly
symettric couldn't possibly exhibit a particular orientation in a
magnetic field.
If it is rotating, it can.
On the other hand, Helium, is perfectly symetrically in the
cubic model and shows zero magnetic moment.
You probably mean only 4He?
Well, standard QM would say for that, too, that the magnetic moment
should be zero.
What does "spherical harmonics" mean, in your opinion?
Sperical harmonics describes the motion of a particle around an
attractive point source.
Wrong.
Thanks for confirming my suspicion.
OK, then what does describe the motion of a particle around an
attractive point source - if spherical harmonics doesn't do this?
1) QM is not so much about "describing motion". "describing the
dynamics" would be a far better expression.
2) The dynamics of a particle in the field of an attractive point
source is described by a wavefunction, which can be described by
a linear combination of spherical harmonics, where the coefficients
are *radial wave functions*. Only in the special case that the particle
is in an eigenstate of angular momentum, there is only one spherical
harmonics - but even then, there is *still* also a *radial* wave
function necessary. The spherical harmonic alone simply isn't sufficient
to describe the dynamics.
Suppose I am in space
outside the effects of gravity and a spray negatively charged pellets
at a positvely charged shere. Is there some branch of physics which describes the
motion of the pellets around the shere?
Electrodynamics. Isn't that obvious???
I am confused beause the diagrams assocated with sherical harmonics
such as:
http://www.uniovi.es/qcg/harmonics/harmonics.html
These are identical to those plots showing electron orbitals like at:
http://www.shef.ac.uk/chemistry/orbitron/index.html
So is it the same or different?
At the second site, they only show the *angular* dependence of the
wave functions, which is indeed given by the spherical harmonics. But
for a *complete* description of the wave functions, you also need
the *radial* part.
If you go to the "Dots!" part of the webpage, you probably get a
more "realistic" picture of the wavefunctions (I don't have the plugin
necessary to see the pictures, but the description sounds sensible).
Bye,
Bjoern
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| User: "Y.Porat" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
27 Feb 2005 02:21:41 AM |
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i took a look on those animated structures
the is some wrong assumptions in it imho
it asumes that orbitals are 'merging' ie they sort of overlap ans sort
of 'loosing thier
orriginal shape - thats a wrongf assumption sucked for just private
immagination
of eomebodys imagnation
i dont suport at all any spherical orbital (there i sno such animal
!(:-)
th eorbitals are while you take a chain of them - longish!!
there is nevr two atoms connected with two electrons - on one stright
line
it is always with a 'broken line'
so for instance the 2H molecule is not on one line
it is sort of a V shape while the nucs are at the top of that V as two
very little 'points'
th eelectrons are 'crossing hands but only the edge of their 'hands'
if you what methaphorically they clutch' only the palm of their hands
or if you like : they only 'shake hands'!
even that is not righ tto say 'points'
and the most shoking innovation is that th eelectron orbitals
in molecules and metal latices have more pr less *always the same
lemnth'
that is one of the decrets that lie behing the Avogadro law in gasses
it is valid soemthing similar bu tnot exactly in metal latice.
and another principle that has to be kept in mind is that
it is not alwats that two electrons from two sides are doing the
connection
in some cases it is just an elecron from only one atom (among the two)
that makes the connection
iow much more elabourated and variant than people immagine.
all the best
Y.P;orat
-----------------------------
---------------------
all th ebest
Y.porat
-----------------------
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| User: "Dr. Photon" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
27 Feb 2005 12:01:56 PM |
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[snip]
Can any of you atom remodellers model the following measurements:
4d orbitals
http://cbed.mse.uiuc.edu/images/cu2o.gif
N2 bonding orbital (half way down at)
http://cibernautes.com/didaclopez/944/2670/
figure caption I think approximately translates as
" One of the images obtained by the group of Villeneuve, which shows
the molecular orbital around the exterior of molecular N2, which
includes an amplitude region that encompasses both atoms and which is
uniquely determined. The images obtained coincide with the theoretical
models of the molecular orbital of diatomic nitrogen."
QM got them right, how do you guys compare?
BR
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| User: "Franz Heymann" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
27 Feb 2005 04:19:30 PM |
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"Dr. Photon" <brendan.roycroft@nmrc.ie> wrote in message
news:b8f632e2.0502271001.609bab4b@posting.google.com...
[snip]
Can any of you atom remodellers model the following measurements:
4d orbitals
http://cbed.mse.uiuc.edu/images/cu2o.gif
N2 bonding orbital (half way down at)
http://cibernautes.com/didaclopez/944/2670/
figure caption I think approximately translates as
" One of the images obtained by the group of Villeneuve, which shows
the molecular orbital around the exterior of molecular N2, which
includes an amplitude region that encompasses both atoms and which
is
uniquely determined. The images obtained coincide with the
theoretical
models of the molecular orbital of diatomic nitrogen."
QM got them right, how do you guys compare?
The calculations of electronic wavefunctions of small molecules have
been pursued actively and productively since the at least the late
seventies. A good name to look out for is J. Tennyson. Once you have
latched on to any of his papers you will open the floodgates for
further references.
--
Franz
"The great tragedy of science -- the slaying of a beautiful hypothesis
by an ugly fact."
T.H. Huxley
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| User: "Dr. Photon" |
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| Title: Re: New Cubic Atomic Model explains electron energy levels and bonding |
28 Feb 2005 04:55:30 AM |
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"Franz Heymann" <notfranz.heymann@btopenworld.com> wrote in message news:<cvth1i$dfk$2@hercules.btinternet.com>...
"Dr. Photon" <brendan.roycroft@nmrc.ie> wrote in message
news:b8f632e2.0502271001.609bab4b@posting.go | | | | | | | | | | |