Which of the following configuration is associated with biggest jump between 2nd and 3rd IE?

Options

A. `1s^(2)2s^(2)2p^(2)`
B. `1s^(2)2s^(2)2p^(6)3s^(1)`
C. `1s^(2)2s^(2)2p^(6)3s^(2)`
D. `1s^(2)2s^(2)2p^(1)`

Answer

C

Explanation

For (A) configuration becomes relativity stable after loosing `2e^(-)`