Helium Atom: Perpetual Motion Possibility?

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Is a helium atom (or any atom with a full valence shell) a perpetual motion device?
 
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Yes, if you subscribe to the Bohr model of an electron in an atom as a moving particle, orbiting the nucleus. "Is it a perpetual motion machine of the '2nd kind' ?" No. First and second laws deal with conversion of heat into other forms of energy.
 
But, of course, the "Bohr" model was never considered, even by Bohr, to be a very accurate picture of the atom and has long been superceded by the "electron cloud" model.
 

Thread 'Instantaneous dipole moment and orbitals'

Hi. I have got question as in title. How can idea of instantaneous dipole moment for atoms like, for example hydrogen be consistent with idea of orbitals? At my level of knowledge London dispersion forces are derived taking into account Bohr model of atom. But we know today that this model is not correct. If it would be correct I understand that at each time electron is at some point at radius at some angle and there is dipole moment at this time from nucleus to electron at orbit. But how...
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