Commonly Used Ions – AP Chemistry

Vocabulary flashcards covering the formulas and charges of commonly used polyatomic ions and transition-metal cations for AP Chemistry.

acetate

CH3COO^−

ammonium

NH4^+

hydrogen sulfite (bisulfite)

HSO3^−

arsenate

AsO4^3−

hydronium

H3O^+

antimony (III)

Sb^3+

hydroxide

OH^−

antimony (V)

Sb^5+

hypochlorite

ClO^−

arsenic (III)

As^3+

iodate

IO3^−

arsenic (V)

As^5+

iron (II) / ferrous

Fe^2+

bismuth

Bi^3+

borate

BO3^3−

iron (III) / ferric

Fe^3+

cadmium

Cd^2+

carbonate

CO3^2−

lead (II)

Pb^2+

chlorate

ClO3^−

lead (IV)

Pb^4+

chlorite

ClO2^−

manganate

MnO4^2−

chromate

CrO4^2−

chromium (II) / chromous

Cr^2+

mercury (I) / mercurous

Hg2^2+

manganese (II)

Mn^2+

chromium (III) / chromic

Cr^3+

mercury (II) / mercuric

Hg^2+

cobalt (II) / cobaltous

Co^2+

monohydrogen phosphate

HPO4^2−

nickel

Ni^2+

copper (I) / cuprous

Cu^+

nitrate

NO3^−

nitrite

NO2^−

copper (II) / cupric

Cu^2+

oxalate

C2O4^2−

perchlorate

ClO4^−

cyanide

CN^−

periodate

IO4^−

dichromate

Cr2O7^2−

permanganate

MnO4^−

dihydrogen phosphate

H2PO4^−

gold (I) / aurous

Au^+

peroxide

O2^2−

phosphate

PO4^3−

silicate

SiO4^4−

gold (III) / auric

Au^3+

silver

Ag^+

sulfate

SO4^2−

hydride

H^−

sulfite

SO3^2−

hydrogen carbonate (bicarbonate)

HCO3^−

thiocyanate

SCN^−

tin (II) / stannous

Sn^2+

hydrogen oxalate (binoxalate)

HC2O4^−

tin (IV) / stannic

Sn^4+

hydrogen sulfate (bisulfate)

HSO4^−

hydrogen sulfide (bisulfide)

HS^−

vanadium (III)

V^3+

zinc

Zn^2+