Sodium phosphate has the chemical formula Na₃PO₄. Here's how to break it down into its constituent ions:

* Sodium ions (Na+): There are three sodium ions (Na+) per formula unit of sodium phosphate.

* Phosphate ions (PO₄³⁻): There is one phosphate ion (PO₄³⁻) per formula unit of sodium phosphate.

So, the formula of the ions present in sodium phosphate is 3Na⁺ + PO₄³⁻.