(Answered) A hydrogen atom initially in thenbspnnbsp 2 level emits a

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A hydrogen atom initially in the n = 2 level emits a photon and ends up in the ground state.

(a) What is the energy of the emitted photon?

_________ eV

(b) If this atom then absorbs a second photon and returns to the n = 2 state, what must the energy of this photon be?

_________eV

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