Write formulas for the compounds that form from Sr and each of the following polyatomic ion: NO−3, SO2−4, PO3−4.

Question

APPARENTLY SrNO6, SrSO4 , Sr3PO8 is wrong

Answer 1

You must keep the ions in their proper proportions.

NO3 is the ion, so changing it to NO6 is bogus. Maybe you should try (NO3)2

Or, if NO is the ion, then (NO)3 would give you three of them.

Answer 2

the 3 is the charge

Answer 3

yeah - sorry. I read some of your other posts and saw what was going on.