Atomic Structure - Result Question 65

####41. 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

(1984, 1M)

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Answer:

Correct Answer: 41. (d)

Solution:

  1. When electron jumps to lower orbit photons are emitted while photons are absorbed when electron jumps to higher orbit. 1s-orbital is the lower most, electron in this orbital can absorb photons but cannot emit.


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