[10]. The reformation of a hydrogen atom, when the electron has been removed to great distances away from the nucleus—e. g.. by the effect of electrical discharge in a vacuum tube—will accordingly correspond to the binding of an electron by a positive nucleus considered on [p. 5]. If in (3) we put
, we get for the total amount of energy radiated out by the formation of one of the stationary states,
The amount of energy emitted by the passing of the system from a state corresponding to
to one corresponding to
, is consequently
