Polyatomic Ions to Memorize- IB Chem

NO₂^1-

NO₂^1-

nitrite ion

NO₃^1-

nitrate ion

ClO^1-

hypochlorite ion

ClO₂^1-

chlorite ion

ClO₃^1-

chlorate ion

ClO₄^1-

perchlorate ion

CO₃^2-

carbonate ion

HCO₃^1-

hydrogen carbonate ion

C₂O₄^2-

oxalate ion

SO₃^2-

sulfite ion

SO₄^2-

sulfate ion

HSO₄^1-

hydrogen sulfate ion

S₂O₃^2-

thiosulfate ion

PO₃^3-

phosphite ion

PO₄^3-

phosphate ion

HPO₄^2-

hydrogen phosphate ion

H₂PO₄^1-

dihydrogen phosphate ion

NH₄¹⁺

ammonium ion

OH^1-

hydroxide ion

CN^1-

cyanide ion

CH₃COO^1-

ethanoate ion

MnO₄^1-

permanganate ion

CrO₄^2-

chromate

Cr₂O₇^2-

dichromate ion