MDCAT Chemistry MCQ #747

The Pauli Exclusion Principle states that

MDCAT Chemistry MCQ #747

  1. Question 1

    Q1. The Pauli Exclusion Principle states that

    • A) Two electrons in the same atom can have the same set of quantum numbers
    • B) Two electrons in the same orbital must have opposite spins
    • C) Electrons occupy the lowest available energy levels
    • D) Orbitals are filled in order of increasing energy

    Answer: Two electrons in the same orbital must have opposite spins

    Explanation: Pauli Exclusion Principle states that no two electrons can have the same set of quantum numbers, implying opposite spins in the same orbital.