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The electronic configuration of the atom...

The electronic configuration of the atom having maximum difference in first and second ionisation energies is

A

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

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
A
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