Hi Everyone, I was reading this post here (https://www.physicsforums.com/showthread.php?t=206&page=3&highlight=oscillator) where the poster was asking what keeps electrons from falling into the nucleus of the atom due to the unlike charges of the electron and neutron. This raised another question in my mind. I know that ferrous materials like iron have magnetic domains in them which at the atomic level look like small magnets that have their own fields. From what I understand, they say that it is the spin and movement of the electrons in the atoms that produce this “permanent” magnetic field naturally in the material. (This is of course speaking of an unmagnetized chunk of iron). I know from my limited knowledge of quantum mechanics that electrons are expressed in terms of wave functions; they are not particles like the classical model suggests. If a “moving” electron creates a magnetic field in the atom, does it not have to expend energy to do so? This does not make sense considering some of the explanations people gave concerning base energy levels and orbitals. If I have an atom with an electron at the lowest energy level creating a magnetic field from its “movement” then where is the energy to create the field coming from? Perhaps the word move is what is confusing me but I know from basic physics that in order to have movement, work has to be done by something, so what is the ‘something’ that is doing the work to keep the electron moving (looking at is as a wave of course not a particle).