Monoatomic ions you should know
Monoatomic Cations
Elements that form a single cation
Elements that form two or more cations
Ion
H+
Li+
Na+
K+
Rb+
Cs+
Be2+
Mg2+
Ca2+
Sr2+
Ba2+
Al3+
Zn2+
Ag+
Cd2+
Ion
Cr2+
Cr3+
Fe2+
Fe3+
Ni2+
Ni3+
Cu+
Cu2+
Hg22+
Hg2+
Sn2+
Sn4+
Pb2+
Pb4+
Name
hydrogen ion /proton
lithium ion
sodium ion
potassium ion
rubidium ion
cesium ion
beryllium ion
magnesium ion
calcium ion
strontium ion
barium ion
aluminum ion
zinc ion
silver ion
cadmium ion
Name
chromium(II) ion
chromium(III) ion
iron(II) ion
iron(III) ion
nickel(II)
nickel(III)
copper(I) ion
copper(II) ion
mercury(I) ion*
mercury(II) ion
tin(II) ion
tin(IV) ion
lead(II) ion
lead(IV) ion
Common Name
ferrous ion
ferric ion
cuprous ion
cupric ion
mercurous ion
mercuric ion
stannous ion
stannic ion
plumbous ion
plumbic ion
*this is actually a polyatomic ion
Monoatomic Anions
(all form only single ion)
Ion
N3P3O2S2-
Name
nitride ion
phosphide ion
oxide ion
sulfide ion
Ion
HFClBrI-
Name
hydride ion
fluoride ion
chloride ion
bromide ion
iodide ion
Polyatomic ions you should know
Formula
C2H3O2NH4+
CrO42Cr2O72CNHOC2O42MnO4NO3NO2PO43HPO42H2PO4-
Name
acetate ion
ammonium ion
chromate ion
dichromate ion
cyanide ion
hydroxide ion
oxalate ion
permanganate ion
nitrate ion
nitrite ion
phosphate ion
hydrogen phosphate ion
dihydrogen phosphate ion
Formula
CO32HCO3SO42HSO4SO32HSO3ClO4ClO3ClO2ClO-
Name
carbonate ion
bicarbonate ion
sulfate ion
bisulfate ion
sulfite ion
bisulfite ion
perchlorate ion
chlorate ion
chlorite ion
hypochlorite ion
Acids you should know
Hydrohalic acids
Formula
Name
HF
hydrofluoric acid
HCl
hydrochloric acid
HBr
hydrobromic acid
HI
hydroiodic acid
Oxygen containing acids
Formula
Name
H3PO4
phosphoric acid
H3PO3
phosphorous acid
H2SO4
sulfuric acid
H2SO3
sulfurous acid
H2CO3
carbonic acid
HMnO4
permanganic acid
HNO3
nitric acid
HNO2
nitrous acid
HC2H3O2
acetic acid
H2C2O4
oxalic acid
HClO4
perchloric acid
HClO3
chloric acid
HClO2
chlorous acid
HClO
hypochlorous acid