Question

12)Explain electronic configuration of He and N according to Pauli

and Hund’s principle.​

Answer 1

Explanation:

Hund's Rule states that if 2 or more degenerate (i.e. same energy) orbitals are available, one electron goes into each until all of them are half full before pairing up .

Pauli's Principle:

This principle states that two electrons cannot have all the same Quantum numbers.

Hund's Principle:

This principle states that electrons will first occupy the orbitals singly and then undergo pairing.