Atomic Structure Result Question 41
41. Which electronic level would allow the hydrogen atom to absorb a photon but not to emit a photon?
(1984, 1M)
(a) $3 s$
(b) $2 p$
(c) $2 s$
(d) $1\ \text{s}$
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Answer:
Correct Answer: 41. ( d )
Solution:
When an electron jumps to a lower orbit photons are emitted while photons are absorbed when an electron jumps to a higher orbit. $1 s$-orbital is the lowest, electron in this orbital can absorb photons but cannot emit.
BETA
