AP Chemistry Common Ions

acetate

acetate

C₂H₃O₂⁻

hypobromite

BrO⁻

bromite

BrO₂⁻

bromate

BrO₃⁻

perbromate

BrO₄⁻

hypochlorite

ClO⁻

chlorite

ClO₂⁻

chlorate

ClO₃⁻

perchlorate

ClO₄⁻

chloride

Cl⁻

cyanide

CN⁻

hydrogen oxalate

HC₂O₄⁻

dihydrogen phosphate

H₂PO₄⁻

hydrogen carbonate (bicarbonate)

HCO₃⁻

hydrogen sulfate (bisulfate)

HSO₄⁻

hydrogen sulfite (bisulfite)

HSO₃⁻

hydrogen sulfide

HS⁻

hydroxide

OH⁻

nitrite

NO₂⁻

nitrate

NO₃⁻

hypoiodite

IO⁻

iodite

IO₂⁻

iodate

IO₃⁻

periodate

IO₄⁻

iodide

I⁻

permanganate

MnO₄⁻

thiocyanate

SCN⁻

carbonate

CO₃²⁻

chromate (yellow)

CrO₄²⁻

dichromate (orange)

Cr₂O₇²⁻

hydrogen phosphate

HPO₄²⁻

oxalate

C₂O₄²⁻

peroxide

O₂²⁻

sulfite

SO₃²⁻

sulfate

SO₄²⁻

sulfide

S²⁻

thiosulfate

S₂O₃²⁻

phosphite

PO₃³⁻

phosphate

PO₄³⁻

phosphide

P³⁻

arsenate

AsO₄³⁻

nitride

N³⁻

ammonium

NH₄⁺

hydronium

H₃O⁺

silver

Ag⁺

mercury (I)

Hg₂²⁺

mercury (II)

Hg²⁺

zinc

Zn²⁺