MDCAT Chemistry MCQ #788

Which element's ionic radius anomaly is due to lanthanide contraction?

MDCAT Chemistry MCQ #788

  1. Question 1

    Q1. Which element's ionic radius anomaly is due to lanthanide contraction?

    • A) Hafnium
    • B) Zirconium
    • C) Both A and B
    • D) Neither A nor B

    Answer: Both A and B

    Explanation: Lanthanide contraction causes Zr and Hf to have nearly identical radii (option C). This is not a size anomaly but a similarity.