Which principle(s)or rule must be used to determine the correct electronic configuration for any atom in its ground state?

Question

Quizplus · Accepted Answer

All three principles, Aufbau Principle, Hund's Rule, and Pauli Exclusion Principle, must be used to determine the correct electronic configuration for any atom in its ground state. The Aufbau principle states that electrons will occupy the lowest energy level before moving to higher levels. Hund's rule states that electrons will fill orbitals of the same energy level singly before pairing up. The Pauli Exclusion Principle states that no two electrons in the same atom can have the same four quantum numbers. Together, these principles allow for the determination of the correct electronic configuration of an atom in its ground state.

Which Principle(s)or Rule Must Be Used to Determine the Correct