Which of the following pairs of elements will combine to produce an ionic bond?
A. Lithium and Bromine
B. Oxygen and Hydrogen
C. Carbon and Oxygen
D. Nitrogen and Fluorine

A. Lithium and Bromine (LiBr)

Explanation:

Ionic bonds are chemical compounds formed between a metal and nonmetal. Lithium is a metal and Bromine is a nonmetal, therefore they would combine to produce an ionic bond.

- Oxygen and Hydrogen are both nonmetals, therefore they cannot produce an ionic bond when combined.

- Carbon and Oxygen are both nonmetals, therefore they cannot produce an ionic bond when combined.

- Nitrogen and Fluorine are both nonmetals, therefore they cannot produce an ionic bond when combined.

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