Question

identifying atoms that form ionic bonds
which of these pairs would form an ionic bond?
k and br
c and h
h and o
cu and cu

Explanation:

Ionic bonds form between a metal and a non - metal. K (potassium) is a metal and Br (bromine) is a non - metal. C (carbon) and H (hydrogen) are non - metals (covalent bond). H (hydrogen) and O (oxygen) are non - metals (covalent bond). Cu (copper) and Cu (copper) are the same metal (metallic bonding).

Answer:

K and Br