Home Chemistry Structure of Atom Quantum Number, Electronic Configuration and Shape of Orbitals Pauli's exclusion principle states that
Chemistry Structure of Atom Quantum Number, Electronic Configuration and Shape of Orbitals Single Correct MCQ
Published on: August 12, 2026

Pauli's exclusion principle states that

A
Nucleus of an atom contains no negative charge
B
Electrons move in circular orbits around the nucleus
C
Electrons occupy orbitals of lowest energy
D
All the four quantum numbers of two electrons in an atom cannot be equal

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The correct answer is:
D

According to Pauli’s exclusion principle no two electrons in the same atom can have all the set of four quantum numbers identical.

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