How many chromium ions are in the compound chromium (ii) nitrate?

The chemical formula of chromium (II) nitrate is as shown below.

Cr₂NO₃

The number in the subscript of the chemical formula of the given element signifies the number of atom or ions of the given element. In this regard, based on the chemical formula written for chromium (II) nitrate, the number of chromium ions would have to be 2.

Answer: 2