Ion Names and Formulas

Memorize these ions names and formulas, including charges, for the Ions Names/Formulas Mastery Test. In nature, ions are found making up ionic compounds and in water solutions. Ions are usually much more chemically stable than their respective atoms. The reactions that produced them took place long ago.

Ammonium Ion

Ammonium Ion

NH4+1(aq)

Copper (I) Ion

Cu+1(aq)

Hydrogen Ion

H+(aq)

Lithium Ion

Li+(aq)

Potassium Ion

K+(aq)

Sodium Ion

Na+(aq)

Silver Ion

Ag+(aq)

Mercury (I) Ion

Hg2+2(aq)

Calcium Ion

Ca+2(aq)

Copper (II) Ion

Cu+2(aq)

Iron (II) Ion

Fe+2(aq)

Lead (II) Ion

Pb+2(aq)

Magnesium Ion

Mg+2(aq)

Zinc Ion

Zn+2(aq)

Barium Ion

Ba+2(aq)

Mercury (II) Ion

Hg+2(aq)

Aluminum Ion

Al+3(aq)

Iron (III) Ion

Fe+3(aq)

Tin (IV) Ion

Sn+4(aq)

Lead (IV) Ion

Pb+4(aq)

Manganese (IV) Ion

Mn+4(aq)

Bromide Ion

Br-1(aq)

Chloride Ion

Cl-(aq)

Fluoride Ion

F-(aq)

Iodide Ion

I-(aq)

Bicarbonate Ion

HCO3-(aq)

Hydroxide Ion

OH-(aq)

Nitrate Ion

NO3-(aq)

Permanganate Ion

MnO4-(aq)

Perchlorate Ion

ClO4-(aq)

Chlorate Ion

ClO3 - (aq)

Chlorite Ion

ClO2-(aq)

Hypochlorite Ion

ClO-(aq)

Cyanide Ion

CN-(aq)

Cyanate Ion

OCN-(aq)

Thiocyanate Ion

SCN-(aq)

Acetate Ion

CH3COO-(aq)

Nitrite Ion

NO2-(aq)

Formate Ion

HCOO-(aq)

Carbonate Ion

CO3-2(aq)

Oxide Ion

O-2(aq)

Sulfate Ion

SO4-2(aq)

Sulfide Ion

S-2(aq)

Chromate Ion

CrO4-2(aq)

Dichromate Ion

Cr2O7-2(aq)

Thiosulfate Ion

S2O3-2(aq)

Peroxide Ion

O2-2(aq)

Phosphate Ion

PO4-3(aq)

Borate Ion

BO3-3(aq)

Nitride Ion

N-3(aq)

Phosphide Ion

P-3(aq)

Phosphite Ion

PO3-3(aq)

Citrate Ion

C6H5O7-3(aq)