Question

What is the correct formula unit for the ionic compound, cadmium oxide?
? CdO
? Cd2O
? CmO2
? CaO
? CdO2

Answer 1

The correct formula unit for the ionic compound cadmium oxide is **CdO**. Cadmium (Cd) typically has a +2 charge, and oxide (O) typically has a -2 charge, which means they combine in a 1:1 ratio to form CdO.