Question

name the following ionic compound. fe₃(po₄)₂

Explanation:

Step1: Identify the cation

The cation is iron. Since the compound is ionic and the phosphate ion ($PO_4^{3 - }$) has a - 3 charge and there are 2 phosphate ions (total negative charge = - 6), and there are 3 iron atoms, each iron atom has a + 2 charge. So it is iron(II).

Step2: Identify the anion

The anion is the phosphate ion ($PO_4^{3 - }$).

Answer:

Iron(II) phosphate