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The valence shell electronic configurati...

The valence shell electronic configuration of `Cr^(2+)` ion is

A

`4s^(0)3d^(4)`

B

`4s^(2)3d^(2)`

C

`4s^(2)3d^(0)`

D

`3p^(6)4s^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Electronic configuration of chromium
`Cr rarr [Ar]3d^(5)4s^(1)`
`Cr^(2+)rarr[Ar]3d^(4)4s^(0)`.
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