May the best chemist win! - Polyatomic and monatomic ions

Cl^-

• Chloride

• Chlorite

• Carbonite

• Cyanide

H₂PO₄^-

• Potassium

• Dihygrogen Phosphide

• Dihydrogen Phosphate

• Biphosphate

• Phosphate

ClO^-

• Chlorite

• Perchlorate

• Hypochloride

• Hypochlorite

Nitrite

• NO₃^-1

• NO₃^-2

• NO₂^-1

• NO₂^-2

• N^-3

Sulfite

• SO₃^-2

• SO₄^-2

• SO₄^-3

• SO₄^-

Sulfate

• SO₄^-2

• SO₃^-2

• SO₃^-

• SO₄^-

Nitrate

• NO₃^-1

• NO₂^-1

• NO₂^-2

• NO₃^-2

• N^-3

Nitride

• NO₃^-1

• NO₃^-2

• NO₂^-1

• NO₂^-2

• N^-3

CO₃^2- is named __

What is the charge of a phosphate ion?

• -1

• -2

• -3

• +1