MDCAT Chemistry MCQ #944

Which rule states that electrons fill orbitals of the same energy in a way that maximizes unpaired electrons?

MDCAT Chemistry MCQ #944

  1. Question 1

    Q1. Which rule states that electrons fill orbitals of the same energy in a way that maximizes unpaired electrons?

    • A) Aufbau principle
    • B) Pauli exclusion principle
    • C) Hund's rule
    • D) Heisenberg uncertainty principle

    Answer: Hund's rule

    Explanation: Hund's rule governs electron pairing. The Aufbau principle fills lower energy orbitals first.