"Each electron in an atom must have its own unique set of quantum numbers" is a statement of_______________?
Correct answer: B. Pauli exclusion principle
- A. Aufbau principle
- B. Pauli exclusion principle
- C. Hund's rule
- D. Periodic law
Explanation
The Pauli exclusion principle states that no two electrons in an atom can have the same four quantum numbers. Aufbau describes filling order, while Hund’s rule describes how electrons occupy equal-energy orbitals.
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