* Yttrium (Y): Yttrium is a metal in group 3 of the periodic table, and it forms a +3 cation (Y³⁺).
* Chlorate (ClO₃): Chlorate is a polyatomic ion with a -1 charge (ClO₃⁻).
To balance the charges, you need three chlorate ions for every yttrium ion. Therefore, the formula is Y(ClO₃)₃.
