Cation Anion List

Symbol
H+
Li+
Na+
K+
Rb+
Cs+
Be2+
Mg2+
Ca2+
Sr2+
Ba2+
Ra2+
Zn2+
Symbol
Cu+
Cu2+
Fe2+
Fe3+
Sn2+
Sn4+
Cr2+
Cr3+
Mn2+
Mn3+

Symbols and Charges for Monoatomic Ions
Name
Symbol
Name
hydrogen ion
H¯
hydride lithium ion
F¯
fluoride
Note that the sodium ion
Cl¯
chloride letters in an ion’s potassium ion
Br¯
bromide name before the rubidium ion
I¯
iodide
-ide ending is
2¯
cesium ion
O
oxide the stem. For
2¯
beryllium ion
S
sulfide example, the stem magnesium ion
Se2¯
selenide for bromide is calcium ion
Te2¯
telluride brom-. strontium ion barium ion
Ag + silver ion
N 3¯ nitride radium ion
Ni2+
nickel ion
P 3¯ phosphide 3+
3¯
zinc ion
Al
aluminum ion
As
arsenide
Systematic name
(Stock system) copper(I) copper(II) iron(II) iron(III) tin(II) tin(IV) chromium(II) chromium(III) manganese(II) manganese(III)

Common name cuprous cupric ferrous ferric stannous stannic chromous chromic manganous manganic Symbol
Hg22+
Hg2+
Pb2+
Pb4+
Co2+
Co3+
Au +
Au 3+

Systematic name
(Stock system) mercury(I) mercury(II) lead(II) lead(IV) cobalt(II) cobalt(III) gold(I) gold(III)

Common name mercurous mercuric plumbous plumbic cobaltous cobaltic aurous auric Formula
NO3¯
NO2¯
CrO42¯
Cr2O72¯
CN¯
MnO 4¯
OH¯
O22¯
NH2¯
CO32¯

Symbols and Charges for Polyatomic Ions
Name
Formula
Name
nitrate
ClO4¯
perchlorate nitrite ClO3¯ chlorate chromate
ClO2¯
chlorite dichromate ClO¯ hypochlorite cyanide
IO 4¯ periodate permanganate
IO 3¯ iodate hydroxide
IO¯
hypoiodite peroxide BrO3¯ bromate amide
BrO¯
hypobromite carbonate HCO3¯ hydrogen carbonate (bicarbonate)

SO42¯
SO32¯
C2O42¯
PO43¯
PO33¯

sulfate sulfite oxalate phosphate phosphite

HSO4¯
HSO3¯
HC2O4¯
HPO42¯
H2PO4¯

hydrogen sulfate (bisulfate) hydrogen sulfite (bisulfite) hydrogen oxalate (binoxalate) hydrogen phosphate dihydrogen phosphate