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The configuration 1s^(2) 2s^(2) 2p^(5) 3...

The configuration `1s^(2) 2s^(2) 2p^(5) 3s^(1)` shows

A

Excited state of `O_(2)^(-)`

B

Excited state of neon

C

Excited state of fluorine

D

Ground state of flurine atom.

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Verified by Experts

The correct Answer is:
B
The ground state of neon is `1s^(2) 2s^(2) 2p^(6)`.
On excitation an electron from `2p` jumps to 3s orbital.The excited neonconfiguration is `1s^(2)2s^(2) 2p^(5) 3s^(1)`.
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