MDCAT Chemistry MCQ #814

Why does lead have a lower electronegativity than carbon despite being in the same group?

MDCAT Chemistry MCQ #814

  1. Question 1

    Q1. Why does lead have a lower electronegativity than carbon despite being in the same group?

    • A) Increased shielding effect
    • B) Relativistic effects on valence electrons
    • C) Lower ionization energy
    • D) Higher metallic character

    Answer: Relativistic effects on valence electrons

    Explanation: Relativistic effects stabilize Pb's 6p orbital, reducing electronegativity. A and C are indirect factors.