DEFINE EACH OF THE FOLLOWING: PAULI EXCLUSION PRINCIPLE AND HUND’S RULE

PAULI EXCLUSION PRINCIPLE

This states that no Two electron in the atom can have four set of quantum numbers. If there are two electron In the same orbit, they must have opposite Spins

HUND’S RULE

This states that orbitals of equal energy are each occupied by one electron before orbitals is occupied by the second electron and all electron in single occupied orbitals must have the same spins.