The lowest first ionization energy would be associated with which of the following configurations.

The lowest first ionization energy would be associated with which of t

1.	The lowest first ionization energy would be associated with which of the following configurations.
Answer» `1s^(2)2s^(2)2P^(6)3s^(1)` `1s^(2)2s^(2)2p^(5)` `1s^(2)2s^(2)2p^(6)` `1s^(2)2s^(2)2p^(6)3s^(2)3P^(2)` Answer :A