[CHEM130 Table 4.4] Common Polyatmoic Ions

Acetate – C₂H₃O₂⁻

• Carbonate – CO₃²⁻

• Hydrogen carbonate (bicarbonate) – HCO₃⁻

• Hydroxide – OH⁻

• Nitrite – NO₂⁻

• Nitrate – NO₃⁻

• Chromate – CrO₄²⁻

• Dichromate – Cr₂O₇²⁻

• Phosphate – PO₄³⁻

• Hydrogen phosphate – HPO₄²⁻

• Dihydrogen phosphate – H₂PO₄⁻

• Ammonium – NH₄⁺

• Hypochlorite – ClO⁻

• Chlorite – ClO₂⁻

• Chlorate – ClO₃⁻

• Perchlorate – ClO₄⁻

• Permanganate – MnO₄⁻

• Sulfite – SO₃²⁻

• Hydrogen sulfite (bisulfite) – HSO₃⁻

• Sulfate – SO₄²⁻

• Hydrogen sulfate (bisulfate) – HSO₄⁻

• Cyanide – CN⁻

• Peroxide – O₂²⁻