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Which of the following options does not...

Which of the following options does not represent ground state electronic configuration of an atom?

A

`1s^(2) 2s^(2) 2p^(2) 3s^(2) 2p^(6) 3d^(8) 4s^(2)`

B

`1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6) 3d^(9) 4s^(2)`

C

`1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6) 3d^(10) 4s^(1)`

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
Correct configuration (b) should be `1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6) 3d^(10) 4s^(1)` (for `._(29)Cu`)
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