Question

what is the correct name for the compound in the image?
aluminum nitrate
aluminum nitride
aluminum nitrite
aluminum nitrogen oxide

Explanation:

• The compound \(Al(NO_2)_3\) consists of the aluminum ion (\(Al^{3+}\)) and the nitrite ion (\(NO_2^-\)).
• When naming ionic compounds, we name the cation first (aluminum) and then the anion.
• The nitrite ion (\(NO_2^-\)) is different from the nitrate ion (\(NO_3^-\)), nitride ion (\(N^{3 -}\)), and there is no such standard name as "aluminum nitrogen oxide" for this compound.

Answer:

Aluminum nitrite