MDCAT Chemistry MCQ #789

Why is the atomic radius of sulfur greater than chlorine?

MDCAT Chemistry MCQ #789

  1. Question 1

    Q1. Why is the atomic radius of sulfur greater than chlorine?

    • A) Sulfur has a lower nuclear charge
    • B) Chlorine has greater electron shielding
    • C) Sulfur has more electron shells
    • D) Chlorine's electrons are in higher energy orbitals

    Answer: Sulfur has a lower nuclear charge

    Explanation: Sulfur's lower nuclear charge (option A) reduces pull on electrons. More shells (option C) would increase radius, but both are in the same period.