MDCAT Chemistry MCQ #871

How do Pauli's Exclusion Principle and Hund's Rule differ in electron configuration?

MDCAT Chemistry MCQ #871

  1. Question 1

    Q1. How do Pauli's Exclusion Principle and Hund's Rule differ in electron configuration?

    • A) Pauli limits electrons per orbital, Hund maximizes spin pairing
    • B) Pauli requires paired spins, Hund allows unpaired spins
    • C) Pauli applies to subshells, Hund to orbitals
    • D) Pauli governs energy levels, Hund governs subshell filling

    Answer: Pauli requires paired spins, Hund allows unpaired spins

    Explanation: Pauli forbids identical spin electrons per orbital. Hund maximizes unpaired spins before pairing. Option A reverses their roles.