IONIC CHARGES CHART
CATIONS (Positive charged ion – all metals). Cation name or symbol always goes first
1+
2+
+
ammonium
NH4
cesium
Cs+
gold(I)
Au+
hydrogen
H+
lead(I)
Pb+
lithium
Li+
potassium
K+
silver
Ag+
sodium
Na+
copper(I)
Cu+
All Group 1A elements
3+
barium
beryllium
cadmium(II)
calcium
cobalt(II)
copper (II)
iron(II)
lead (II)
magnesium
manganese(II)
mercury(II)
nickel(II)
strontium
tin(II)
zinc(II)
All Group 2A elements
2+
Ba
Be2+
Cd2+
Ca2+
Co2+
Cu2+
Fe2+
Pb2+
Mg2+
Mn2+
Hg2+
Ni2+
Sr2+
Sn2+
Zn2+
Al3+
Cr3+
Co3+
Au3+
Fe3+
Mn3+
aluminum
chromium(III)
cobalt(III)
gold(III)
iron(III)
manganese(III)
4+
Sn4+
Ni4+
Pb4+
tin(IV)
nickel(IV)
lead(IV)
Roman numeral notation indicates charge of an ion when an element commonly forms more than one
cation.
ANIONS (negative charged ions – all non-metals)
1-
acetate
C2H3O2
amide
NH2hydrogen carbonate
(bicarbonate)
HCO3hydrogen sulfate
(bisulfate)
HSO4bisulfide
HSbisulfite
HSO3bromate
BrO3bromide
Brchlorate
ClO3chlorite
ClO2chloride
Cl-
cyanide
CNcyanate
OCNfluoride
Fhydride
Hhydroxide
OHhypochlorite
ClOiodate
IO3iodide
Initrate
NO3nitrite
NO2perchlorate
ClO4permanganate MnO4thiocyanate
SCN-
2-
32-
carbonate
CO3
chromate CrO42dichromate Cr2O72oxide
O2oxalate
C2O42silicate
SiO32sulfate
SO42sulfite
SO32sulfide
S2tartrate C4H4O62tetraborate B4O72thiosulfate S2O32-
arsenate AsO43arsenite
AsO33citrate C6H5O73ferricyanide
Fe(CN)63nitride
N3phosphate PO43phosphite PO33phosphide
P3-
4carbide
silicide
C4Si4-