What is the formula for Iron (II) Phosphate?

Question

Can someone tell me please?

Answer 1

Fe3(PO4)2

Answer 2

Iron(II) Phosphate=Fe3(PO4)2

Iron(II) mean Fe^2+ which is Fe with a +2 charge and if you remember the polyatomic ions you had to memorize, phosphate is PO4^3-. Since Fe has a +2 charge you need 3 Fe to have a +6 charge and since PO4 has a -3 charge you need 2 PO4 to have a -6 charge so the charges cancel. Since we need 3 Fe and 2 PO4 we write it as Fe3(PO4)2 which means 3 Fe and 2 PO4.