What keeps electrons spinning around their nucleus?
in [Relativity]
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From: Josef Matz on 27 Mar 2005 15:27 My opinion: The electron inernally spins everywhere with c. The magnetic field such that the Lorentz force is zero. "Nick" <macromitch(a)yahoo.com> schrieb im Newsbeitrag news:1111914025.767519.298700(a)f14g2000cwb.googlegroups.com... > What is the velocity of an electron in a shell? > Can they move at different speeds and remain in the > same shell? > > More imporatant is what sustains them in their perpetual motions? > Mitch -- Light Falls -- >
From: The Ghost In The Machine on 27 Mar 2005 18:00 In sci.physics, Nick <macromitch(a)yahoo.com> wrote on 27 Mar 2005 01:00:25 -0800 <1111914025.767519.298700(a)f14g2000cwb.googlegroups.com>: > What is the velocity of an electron in a shell? > Can they move at different speeds and remain in the > same shell? > > More imporatant is what sustains them in their perpetual motions? > Mitch -- Light Falls -- > The Bohr model, like the J. J. Thompson variant before it, was discredited long ago. The general QM variant might be able to give one a probability curve of momenta and positions, but that's about it. I'd frankly have to restudy QM at this point (specifically the eigenvalues/vectors of the hydrogen atom) to see what one might deduce regarding the speed (as opposed to the velocity) of an electron therein. You might glean some insight from the Orbitron: http://www.shef.ac.uk/chemistry/orbitron/index.html but even that has some problems, as the depictions of the orbitals aren't quite fuzzy enough, and it is far from clear to me that an electron can't inhabit, say, *all six* of the 2p orbitals at once. (The energy of the orbitals might be distorted by e.g. an externally-applied magnetic or electric field, leading to some interesting effects as the electron tries to occupy a lower-energy state. A mathematical description for the 2p orbitals can be had at http://www.shef.ac.uk/chemistry/orbitron/AOs/2p/equations.html .) Then there's the issue of the rotation of the coordinate axes. In short: the atomic world is very weird. :-) Consistent, but weird. -- #191, ewill3(a)earthlink.net It's still legal to go .sigless.
From: TomGee on 27 Mar 2005 21:59 Nick and Mitch, I find it incredible that these posters, all the way down to "Ghost", cannot remember that the negatively charged electrons in an atom are attracted to the positively charged protons in the atom's nucleus and that it is this force of attraction which binds the electrons to the atom. TomGee
From: Nick on 27 Mar 2005 22:08 You say attraction causes motion? But how? Do you know that? I didn't think so. Mitch Raemsch -- Light Falls --
From: RP on 27 Mar 2005 22:45
TomGee wrote: > Nick and Mitch, I find it incredible that these posters, all the way > down to "Ghost", cannot remember that the negatively charged electrons > in an atom are attracted to the positively charged protons in the > atom's nucleus and that it is this force of attraction which binds > the electrons to the atom. > > TomGee :) Richard Perry |