# What is the ionic compound for Ca3(PO4)2?

Jun 18, 2014

The compound $C {a}_{3} {\left(P {O}_{4}\right)}_{2}$ is the molecule Calcium Phosphate.

Calcium is a +2 cation $C {a}^{+ 2}$

Phosphate is a -3 polyatomic anion $P {O}_{4}^{- 3}$

It takes three +2 calcium ions to balance with two -3 phosphate ions in order for the ionic charges to be equal an opposite.