What is the formula for Aluminum Nitrite?

Chemical formula

• The chemical formula of a compound is a symbolic representation of its composition.

Chemical formula for Aluminum Nitrite

• The symbol of aluminum for $\mathrm{Al}$.
• The symbol of polyatomic ion nitrite is written as ${\mathrm{NO}}_2$ with charge $-1$.

• So, the chemical formula for Aluminum Nitrite is $\mathrm{Al}{\left({\mathrm{NO}}_2\right)}_3$.