Correct configuration of Fe^"+3" [26] is...

Correct configuration of `Fe^"+3"` [26] is

A

`1s^(2),2s^(2)2p^(6),3s^(2)3p^(6)3d^(5)`

B

`1s^(2),2s^(2)sp^(6),3s^(2)3p^(6)3d^(3),4s^(2)`

C

`1s^(2),2s^(2)2p^(6),3s^(2)3p^(6)3d^(6),4s^(2)`

D

`1s^(2),2s^(2)2p^(6),3s^(2)3p^(6)3d^(5),4s^(1)`

Verified by Experts

The correct Answer is:

A

`""_(26)Fe=1s^(2),2s^(2)2p^(6),3s^(2)3p^(6)3d^(6),4s^(2)`
`Fe^(3+)=1s^(2),2s^(2)2p^(6),3s^(2)3p^(6)3d^(5)`.

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