Question on: SS1 Chemistry - Atomic Structure

Which electronic configuration represents a halogen?

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A

1s2 2s2 2p6

 

B

1s2 2s2 2p6 3s2 3p5

 

C

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6

 

D

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2

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Correct Option: B

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