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A hydrogen atom (Z = 1) is in the third excited state, and a photon is...

A hydrogen atom (Z = 1) is in the third excited state, and a photon is either emitted or absorbed. Determine

(a) the quantum number nf of the final state

(b) the energy of the photon when the photon is emitted with the shortest possible wavelength

(c) the quantum number nf of the final state

(d) the energy of the photon when the photon is emitted with the longest possible wavelength

(e) the quantum number nf of the final state

(f) the energy of the photon when the photon is absorbed with the longest possible wavelength.

Please include units. Thanks so much

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