Which electronic level would allow the hydrogen atom to absorb a photo – InterviewSolution

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1.	Which electronic level would allow the hydrogen atom to absorb a photon but not to emit a photon(A) 3s(B) 2p(C) 2s(D) 1s
Answer» option D , because this is the last orbital where an electron can fall from any above orbit.. below 1s it cannot emit any thing.

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