Question

ionic bonding
quiz complete
1 2 3 4 5 6 7 8
which pair of elements will form an ionic bond?
○ n and o
○ k and br
○ c and cl
○ fe and ni

Explanation:

Ionic bonds form between a metal and a nonmetal. K (potassium) is an alkali metal, and Br (bromine) is a nonmetal halide. The other pairs are either two nonmetals (N&O, C&Cl) which form covalent bonds, or two metals (Fe&Ni) which form metallic bonds.

Answer:

B. K and Br