MDCAT Chemistry MCQ #964

Which quantum number determines the orientation of atomic orbitals?

MDCAT Chemistry MCQ #964

  1. Question 1

    Q1. Which quantum number determines the orientation of atomic orbitals?

    • A) Magnetic quantum number
    • B) Principal quantum number
    • C) Azimuthal quantum number
    • D) Spin quantum number

    Answer: Magnetic quantum number

    Explanation: Magnetic quantum number (m_l) specifies orbital orientation in space. Azimuthal (C) determines shape, principal (B) energy level.