posted by Anonymous .
I like to write and name chemical formulas, but some formulas just confused me really bad, so I would like help getting back on track.
I don't understand this.
NiPO4: I know that Ni = Nickel, and PO4 = Phosphate, but how come there isn't the -3 charge on it?
This is what I had done:
NiPO4 = Nickel(I) Phosphate.
my friend got something else, she got:
Nickel(III) Phosphate. Where did she get the three from?
If the formula is NiPO4, then since PO4 ion has a -3 charge, the Ni must have +3 charge (since all compounds are zero charged). So we write Ni(III) phosphate.