MDCAT Chemistry MCQ #811

Which element exhibits an anomalous electron configuration where its 3d orbital is half-filled?

MDCAT Chemistry MCQ #811

  1. Question 1

    Q1. Which element exhibits an anomalous electron configuration where its 3d orbital is half-filled?

    • A) Chromium
    • B) Iron
    • C) Copper
    • D) Zinc

    Answer: Chromium

    Explanation: Chromium has [Ar] 3d⁵ 4s¹. Fe, Cu, and Zn follow standard configurations. Zn has fully filled 3d¹⁰.