Check out the post immediately preceding mine. Richard Feynman can do a better job explaining than I do. The crux of it is is that the theory of an atom in which the electrons orbit the nucleus was superseded by QM about 100 years ago.

Hello again,

Oh so you are talking about the difference between the intrinsic magnetism of the electron as opposed to the movement of an electron through say a wire. That makes the origin of the magnetism of say a permanent magnet different than when an electron moves independently of other electrons.
So we end up with two basic sources of magnetism: the electron itself, and the movement of an electron AND it's proximity to other moving electrons. This means we can not consider the electron motion by itself when there are other electrons in motion in close proximity. This means sometimes the magnetic field will cancel even though there are electrons moving around such as in the inner shells.
The way I understand it is that in the outer shell, the intrinsic magnetism of each electron adds up and that's what causes most of the external magnetic field.

Is that what you meant?
I have to admit I keep forgetting this myself for some reason (ha ha) and I think I know why. That's because I seldom have to deal with the precise internal workings of an atom and the electrons within, and instead have to deal almost daily with the movement of electrons through a wire and the magnetic field they are said to create, even though that is not exactly an accurate statement either. Occasionally I also have to deal with the movement of electrons through free space, but that's still not the same as the way they behave inside an atom either.

 

Oh so you are talking about the difference between the intrinsic magnetism of the electron as opposed to the movement of an electron through say a wire. That

I was responding to another poster who still insisted that charge separation was the cause of all electric fields even when a permanent magnet spins in a coil since the magnetic field is created by the electron orbiting in an atom. (how that is charge separation stills puzzled me). The model of electrons orbiting the nucleus was overthrown by QM.

A further example is a propagating EM wave, Here the electric and magnetic field are creating each other, with no charge involved at all.

 

I was responding to another poster who still insisted that charge separation was the cause of all electric fields even when a permanent magnet spins in a coil since the magnetic field is created by the electron orbiting in an atom. (how that is charge separation stills puzzled me). The model of electrons orbiting the nucleus was overthrown by QM.

A further example is a propagating EM wave, Here the electric and magnetic field are creating each other, with no charge involved at all.

Hi,

I hate to say this, but that doesn't sound quite right or you are mixing up theories, but of course I may not understand you correctly so don't get upset.

This is the way I understand it...
The model of electrons orbiting the nucleus did not just go away, it just changed as to the paths that the electron can take. This, however, still does not mean that the motion of the electrons around the nucleus causes the permanent magnet magnetism. In fact, it is not the motion at all it is the raw, intrinsic property of the electron itself that causes the atom to exhibit any magnetism, and only with certain shells. The motion of electrons in a wire is different though as the motion of charge is the main cause of magnetism there as far as I know.

 

The improvement of Bohr's model is the Sommerfeld's model (elliptical orbits etc.), it's as obsolete as the original orbital model.

Quantum mechanics has completely replaced these electron orbital models as it also shows why they are physically impossible (orbits) and produce wrong results.

These old orbital models are useful as teaching tools for kids but have no applicability in modern science because they give the wrong results when compared to experiment.

 

In fact, it is not the motion at all it is the raw, intrinsic property of the electron itself that causes the atom to exhibit any magnetism,

Well, we are in agreement on that. Except the nucleons (including neutrons) also have magnetic moments. Don’t know off-hand how important their contribution is.