The Pauli exclusion principle
A) excludes electrons from atomic nuclei.
B) means that no two electrons in an atom can have the same orbit.
C) implies that no two electrons in an atom can have identical sets of quantum numbers.
D) excludes protons from electron orbits.

Question

Quizplus · Accepted Answer

The Pauli exclusion principle states that no two electrons in an atom can have identical sets of quantum numbers, which includes their spin, and therefore it excludes the possibility of having two electrons in the same energy level with the same spin. This principle has important consequences for the electronic structure of atoms and the periodic table of elements.

The Pauli Exclusion Principle