Which of the following electronic configuration corresponds to an iner

1.	Which of the following electronic configuration corresponds to an inert gas?
Answer» `1s^(2)2S^(2)2p^(5)` `1s^(2)2s^(2)2p^(6)` `1s^(2)2s^(2)2p^(6)3s^(1)` None Answer :B

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