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The electronic configuration 1s2 ,2s2, 2p5 ,3s1 shows

(a) ground state of fluorine atom

(b) excited state of fluorine atom

(c) excited state of neon atom

(d) excited state of ion O-2

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Correct option (c) excited state of neon atom


Neon 1s2 ,2s,2p6

Excited state of neon can be represented as : 

1s2, 2s2, 2p5 ,3s1

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