Which of the following polyatomic ions has a 3- ionic charge?
A)hydroxide
B)nitrate
C)sulfate
D)phosphate
E)hydrogen carbonate

Question

Quizplus · Accepted Answer

The phosphate ion, PO4 3-, has a 3- ionic charge because it contains one phosphorus atom, which has a 5+ charge, and four oxygen atoms, each with a 2- charge. This results in a net charge of 3-. The other listed polyatomic ions have charges of 1- (hydroxide and hydrogen carbonate), 1- or 2- (nitrate), and 2- (sulfate).

Which of the Following Polyatomic Ions Has a 3- Ionic