A sudden large jump between the values of second and third ionisation energies of an element would be associated with the electronic configuration

Options

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

Answer

D

Explanation

`1s^2 2p^2 2p^6 3s^1`- In III transition `e^(-)` is to be removed from stable configuration.