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1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(5) is ...

`1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(5)` is not the electron configuration of

A

`Mn^(3+)`

B

`Fe^(3+)`

C

`Cr^(+)`

D

`Co^(4+)`

Text Solution

Verified by Experts

The correct Answer is:
A
`Mn^(3+)` has 23 electrons
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