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 configurationThis 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

The below process of filling electrons in an orbital follows _________

1.	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 configurationThis 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» 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.

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