Final answer:
The formula NI3PO4 seems incorrect, but nickel(II) phosphate, with the correct formula Ni3(PO4)2, where nickel is in the 2+ oxidation state, would be the name for a compound formed from Ni2+ and PO43- ions.
Step-by-step explanation:
The name of the formula NI3PO4 is not accurate as the compound appears to be incorrectly written. However, if we refer to a compound formed from Ni2+ (nickel(II)) and PO43- (phosphate) ions, the accurate formula would be Ni3(PO4)2 based on charge balancing. The correct name for Ni3(PO4)2 would be nickel(II) phosphate, since the nickel ion has a 2+ charge as indicated by the Roman numeral II.