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Which of the following configuration is ...

Which of the following configuration is correct for iron

A

`1s^2 2s^2 2p ^6 3s ^(6) 4s ^(2) 3d^(7)`

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
D
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