MDCAT Chemistry MCQ #838

Which element's electron configuration defies the Aufbau principle by completely filling the d-orbital without any s-electrons?

MDCAT Chemistry MCQ #838

  1. Question 1

    Q1. Which element's electron configuration defies the Aufbau principle by completely filling the d-orbital without any s-electrons?

    • A) Palladium
    • B) Silver
    • C) Cadmium
    • D) Gold

    Answer: Palladium

    Explanation: Palladium (46) has [Kr] 4d¹⁰ for stability. Silver and Cadmium follow normal filling patterns.