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5 May, 19:13

Which atom would be expected to have a half-filled 4s subshell?

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  1. 5 May, 19:42
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    The atom 2 which would be expected to have a half filled 4s subshell is the potassium atom. Potassium has a electronic configuration 1s2 2s2 2p6 3s2 3p6 4s1 or (Ar) 4s1. The 4S1 subshell is half filled since the s orbital accommodate 2 electron pair to be fully filled.
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