Here we have the compound V3(PO4)2 Separating it into it\'s ions we have: V2+ and PO43- since vanadium is a transition metal, we denote its oxidation state by roman numerals. Thus, the name of the compound is Vanadium (II) Phosphate. Please don\'t forget to rate, good luck studying! Solution Here we have the compound V3(PO4)2 Separating it into it\'s ions we have: V2+ and PO43- since vanadium is a transition metal, we denote its oxidation state by roman numerals. Thus, the name of the compound is Vanadium (II) Phosphate. Please don\'t forget to rate, good luck studying!.