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Ionic Bonding - Problems
Which of the following could NOT form an ionic compound?
Check all that apply.

Lit and CI-
F- and O2-
Ba2+ and Ag
Mg2+ and S2

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Answer:

F- and O2-

Mg2+ and S2

Explanation:

Ionic compounds compose of a metal and a nonmetal. They also compose of a cation(positively charged) and anion(negatively charged). Fluorine and Oxygen are both nonmetals and negatively charged. Barium and silver are both positively charged metals.