Question

The below process of filling electrons in an orbital follows __________

(a) Aufbau principle

(b) Hund’s rule of maximum multiplicity

(c) Pauli’s exclusive principle

(d) Electronic configuration

This question was posed to me in unit test.

I need to ask this question from Quantum Mechanical Model of Atom topic in section Structure of Atom of Chemistry – Class 11

Answer 1

The correct choice is (b) Hund’s rule of maximum multiplicity

Easiest explanation: According to Hund’s rule of maximum multiplicity, the pairing of electrons cannot be started until each of the orbitals is singly occupied. The reason behind this is that the half-filled or fully filled orbitals are much more stable comparatively.