Which of these pairs of elements would be most likely to form an ionic compound?
A) Cl and I
B) Al and K
C) Cl and Mg
D) C and S
E) Al and Mg

Question

Quizplus · Accepted Answer

Ionic compounds typically form between metals and nonmetals, where metals lose electrons to become cations and nonmetals gain electrons to become anions. Cl (chlorine) is a nonmetal and Mg (magnesium) is a metal, making them likely to form an ionic compound.

Which of These Pairs of Elements Would Be Most Likely