* Tin(II) indicates the tin ion has a +2 charge (Sn²⁺).
* Phosphate is the polyatomic ion PO₄³⁻.
To balance the charges, we need three tin(II) ions (3 x +2 = +6) and two phosphate ions (2 x -3 = -6).
Therefore, the chemical formula for tin(II) phosphate is Sn₃(PO₄)₂.
