chemistry question

Question

the correct formula for copper (ii) oxide

Answer 1

Copper (II) Oxide is an Ionic Compound.

 

Copper is a the positively charged cation. The Roman numeral in a transitional metal describes the charge. We can therefore write Copper (II) as Cu²⁺

 

Oxygen is the negatively charged anion. Oxygen has a charge of O^2-

 

Since, the net charges of both the Copper (II) and Oxygen cancel each other. 

Therefore, the correct formula for Copper (II) Oxide is CuO