If nitrogen atoms had el,ectonic configuration is ? It would have energy lower than that of the nornal ground state configuration `1s^(2) 2s^(2) 2p^(3)` because the electrons would be clear to the nucleus yet `1s^(2)` is not oberved because it violates ?

Options

A. Heisenberg uncertainty principle
B. Hund's rule
C. Pauli exclusion principle
D. Bohr postulate of stationary orbits.

Answer

C

Explanation

( c) As per Pauli Exclusion Principle "no two electrons in the same atom can have all the four quantum numbers equal or an orbital cannot cantain more than two electrons and it can accommodate two electrons only when their deirection of spins are opposite".