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An improbable configuration is...

An improbable configuration is

A

A) `[Ar]3d^(10)4s^(1)`

B

B) `[Ar]3d^(5)4s^(1)`

C

C) `[Ar]3d^(6)4s^(2)`

D

D) `[Ar]3d^(4)4s^(2)`

Text Solution

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The correct Answer is:
D
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