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18 terms

Common Polyatomic Ions

Common Polyatomic Ions to Memorize
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Ammonium
NH₄⁺
Mercury (I)
Hg₂²⁺
Hydronium
H₃O⁺
Hydrogen Carbonate
HCO₃⁻
Chlorate
ClO₃⁻
Chromate
CrO₄
Dihydrogen phosphate
H₂PO₄⁻
Hydrogen phosphate
HPO₄⁻
Hydrogen Sulfate
HSO₄⁻
Hydroxide
OH⁻
Nitrate
NO₃⁻
Nitrite
NO₂⁻
Permanganate
MnO₄⁻
Peroxide
O₂²⁻
Phosphate
PO₄⁻
Sulfate
SO₄²⁻
Sulfite
SO₃²⁻
Thiocyanate
SCN⁻