Final answer:
The formula for Aluminum chlorite is Al(ClO2)3.
Step-by-step explanation:
The formula for Aluminum chlorite is Al(ClO2)3. Aluminum (Al) has a charge of +3, and chlorite (ClO2) is a polyatomic ion with a charge of -1. To balance the charges, we need three chlorite ions for every one aluminum ion, resulting in the formula Al(ClO2)3.