Correct Answer:
Option C - In the above, Argon (Ar) and Helium (He) are monoatomic while fluorine (F₂ ) is diatomic and methane (CH₄ ) is polyatomic
C. In the above, Argon (Ar) and Helium (He) are monoatomic while fluorine (F₂ ) is diatomic and methane (CH₄ ) is polyatomic