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The electronic configuration of Cu^(2+...

The electronic configuration of `Cu^(2+)`ion is :

A

`[Ar]4s^(1) 3d^(8)`

B

`[Ar]4s^(2)3d^(10)4p^(1)`

C

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

D

`[Ar]3d^(9)`

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The correct Answer is:
D
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