Copper nitrate is a chemical compound with the formula Cu(NO₃)₂. Here's a breakdown of the elements present:

* Copper (Cu): This is the metallic element that gives copper nitrate its distinctive blue color.

* Nitrogen (N): This nonmetal is part of the nitrate ion (NO₃⁻).

* Oxygen (O): Also a nonmetal, oxygen is the most abundant element in copper nitrate and is also part of the nitrate ion.