An improbable configuration is – InterviewSolution

1.	An improbable configuration is
Answer» A) `[Ar]3d^(10)4S^(1)` B) `[Ar]3d^(5)4s^(1)` C) `[Ar]3d^(6)4s^(2)` D) `[Ar]3d^(4)4s^(2)` ANSWER :D

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