MDCAT Chemistry MCQ #831

Which element has the highest number of unpaired electrons in its ground state?

MDCAT Chemistry MCQ #831

  1. Question 1

    Q1. Which element has the highest number of unpaired electrons in its ground state?

    • A) Chromium
    • B) Manganese
    • C) Iron
    • D) Cobalt

    Answer: Manganese

    Explanation: Manganese (Mn) has 5 unpaired electrons in 3d⁵. Cr has 6 but in 3d⁵ 4s¹.