MDCAT Chemistry MCQ #892

Isotopes of an element differ in:

MDCAT Chemistry MCQ #892

  1. Question 1

    Q1. Isotopes of an element differ in:

    • A) Neutron count
    • B) Proton count
    • C) Electron arrangement
    • D) Atomic number

    Answer: Neutron count

    Explanation: Isotopes share protons but vary in neutrons. Proton count defines element identity.