Answer to Question #67974 in General Chemistry for abdul rafay

Question

Ionization potential of nitrogen is greater than that of oxygen>???why

Answer 1

The charge of the oxygen nucleus is +8 and nitrogen is +7, hence the force of the interaction between the nucleus and the electron for oxygen should be greater and the ionization energy also. But there is a reversal, the role plays that the last 2p-sublevel is half full, which gives the stability atom