Question

A theorem named for this scientist and van Leeuwen states that a classical system of charged particles in thermal equilibrium cannot exhibit magnetism. Quantum mechanics is reduced to classical mechanics at large quantum numbers per this scientist’s (15[1])correspondence principle. The magnetic moment of an electron is expressed by this scientist’s namesake magneton. The Rydberg formula was explained by this scientist’s (*) model that states that electrons only occupy specific energy levels. For 10 points, name this Danish physicist whose model of the atom has electrons moving in fixed orbits around the nucleus. ■END■

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Summary