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Which electronic level would allow the h...

Which electronic level would allow the hydrogen atom to absorb a photon but not to emit a photon?

A

3 s

B

`2p`

C

2s

D

1 s

Text Solution

Verified by Experts

The correct Answer is:
D
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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