hydrogen ion
H+
phosphide ion
P³⁻
aluminum
Al
silicon
Si
phosphorus
P
acetate ion
CH3COO- or C2H3O2- or CH3CO2-
copper (II) sulfate pentahydrate (hydrated salt)
CuSO4 * 5H2O
ozone
O3
hydrogen
H
helium
He
lithium
Li
methane
CH4
Cobalt (II) ion, cobaltous
Co2+
tin (II) ion, stannous
Sn2+
tin (IV), stannic
Sn 4+
cobalt (III) ion, cobaltic
Co 3+
copper (I) ion, cuprous
Cu+
sulfite ion
SO3 charge -2
hydrogen sulfite ion, bisulfite ion
HSO3-
dihydrogen phosphate ion
H2PO4-
hydrogen sulfate (bisulfate)
HSO4-
nitrite ion
NO2-
hydrogen phosphate ion
HPO4 2-
hydrogen carbonate ion (bicarbonate ion)
HCO3-
carbonate ion
CO3 2-
thiocyanate ion
SCN-
oxalate ion
C2O4 2-
hydroxide ion
OH-
cyanide ion
CN-
perchlorate ion
ClO4-
perbromate ion
BrO4-
chlorous acid
HClO2 (aq)
chloric acid
HClO3 (aq)
hydrobromic acid
HBr (aq)
hydroiodic acid
HI (aq)
nitrogen triiodide
NI3
dinitrogen pentoxide
N2O5
nona-
prefix for 9
deca-
prefix for 10
tetra-
prefix for 4
hepta-
prefix for 7
tri-
prefix for 3
hexa-
prefix for 6
mono-
prefix for 1
dichromate ion
Cr2O7 2-
hypochlorous acid
HClO (aq)
hydrofluoric acid
HF (aq)
carbonic acid
H2CO3 (aq)
hydrochloric acid
HCl (aq)
phosphoric acid
H3PO4 (aq)
tetraphosphorus heptasulfide
P4S7
phosphorus acid
H3PO3 (aq)
octa-
prefix for 8
perchloric acid
HClO4 (aq)
penta-
prefix for 5
iodic acid
HIO3 (aq)
di-
prefix for 2
bromic acid
HBrO3 (aq)
chromate ion
CrO4 2-
hydrocyanic acid
HCN (aq)
sulfuric acid
H2SO4 (aq)
sulfurous acid
H2SO3 (aq)
periodic acid
HIO4 (aq)
iodous acid
HIO2 (aq)
bromous acid
HBrO2 (aq)
acetic acid
CH3COOH or HC2H3O2 or HCH3CO2(aq)
gold (I) ion
Au+
lead (IV) ion (plumbic ion)
Pb4+
lead (II) ion (plumbous)
Pb2+
gold (III) ion
Au3+
mercury (II) ion (mercuric)
Hg2+
hypobromite ion
BrO-
hypoiodite ion
IO -1
hypochlorite ion
ClO-
iodite ion
IO2-
bromite ion
BrO2-
chlorite ion
ClO2-
nickel ion
Ni2+
lithium ion
Li+
periodate ion
IO4-
iodate ion
IO3-
bromate ion
BrO3-
chlorate ion
ClO3-
hydronium ion
H3O+
rubidium ion
Rb+
peroxide ion
O2 2-
ammonia
NH3
V
roman numeral for 5
barium
Ba2+
VII
7
hydride ion
H-
phosphate ion
PO4 3-
magnesium ion
Mg2+
chromium (III) ion, chromic ion
Cr3+
bromide ion
Br-
sulfate ion
SO4 2-
iron (II) ion, ferrous
Fe2+
sulfide ion
S2-
nitrate ion
NO3-
zinc ion
Zn2+