Chemistry - Common Ions

Common Cations and Polyatomic ions

Copper(l)

Cu+

Silver

Ag+

Mercury(l)

Hg2²+

Gold(l)

Au+

Chromium(ll)

Cr²+

Copper(ll)

Cu²+

Iron(ll)

Fe²+

Lead(ll)

Pb²+

Mercury(ll)

Hg²+

Zinc

Zn²+

Tin(ll)

Sn²+

Nickel(ll)

Ni²+

Cobalt(ll)

Co²+

Chromium(lll)

Cr³+

Iron(lll)

Fe³+

Nickel(lll)

Ni³+

Gold(lll)

Au³+

Titanium(lll)

Ti³+

Cobalt(lll)

Co³+

Lead(lV)

Pb^4+

Tin(IV)

Sn^4+

Titanium(IV)

Ti^4+

Ammonium

NH4^+

Hydronium

H3O^+

Acetate

C2H3O2^-

Perchlorate

CIO4^-

Chlorate

CIO3^-

Chlorite

CIO2^-

Hypochlorite

CIO^-

Cyanide

CN^-

Hydroxide

OH^-

Nitrate

NO3^-

Nitrite

NO2^-

Hydrogen sulfate(bisulfate)

HSO4^-

Hydrogen Carbonate

HCO3^-

Dihydrogen phosphate

H2PO4^-

Permanganate

MnO4^-

Bromate

BrO3^-

Bromite

BrO2^-

Hypobromite

BrO^-

Iodate

IO3^-

Iodite

IO2^-

Hypoiodite

IO^-

Formate

HCOO^-

Carbonate

CO3²-

Chromate

CrO4²-

Dichromate

Cr2O7²-

Peroxide

O2²-

Sulfate

SO4²-

Sulfite

SO3²-

Oxalate

C2O4²-

Hydrogen Phosphate(biphosphate)

HPO4²-

Thiosulfate

S2O3²-

Silicate

SiO3²-

Carbide

C2²-

Tartrate

C4H4O6²-

Phthalate

C8H4O4²-

Disulfate

S2²-

Manganate

MnO4²-

Hexaflourosilicate

SiF6²-

Phosphate

PO4³-

Phosphite

PO3³-

Hypophosphite

PO2³-

Borate

BO3³-

Citrate

C6H5O7³-

Arsenate

AsO4³-

Arsenite

AsO3³-