Final answer:
In the chemical formula Ca3(NO2)3, there are three nitrate groups, each containing one nitrogen atom, which results in a total of three nitrogen atoms.
Step-by-step explanation:
In the formula Ca3(NO2)3, we can determine the number of atoms of nitrogen by analyzing the subscript numbers associated with nitrogen in the chemical formula. The formula indicates that there are three nitrate (NO2) groups. Each nitrate group contains one nitrogen atom. Thus, you multiply the number of nitrate groups by the number of nitrogen atoms per group.
To calculate the total number of nitrogen atoms, you use the following calculation:
- (Number of NO2 groups) × (Number of nitrogen atoms per NO2 group) = Total nitrogen atoms
- 3 × 1 = 3 nitrogen atoms
Therefore, there are three nitrogen atoms in Ca3(NO2)3.