Ionic Compound Nomenclature Nomenclature – naming and formula writing of chemical compounds

Ionic Nomenclature Ionic bonding occurs between… a metal & a non-metal To name an ionic compound: name the metal name the non-metal, adding an –ide ending name the cation, name the anion

Ionic Nomenclature For example… CaCl2 forms from: the calcium ion, Ca2+ and the chloride ion, Cl- So, the name of CaCl2 is calcium chloride.

Ionic Nomenclature MgO magnesium oxide Al2O3 Rb3P aluminum oxide rubidium phosphide

Ionic Nomenclature To write formulas for an ionic compound, determine what charge is on the metal ion and what charge is on the non-metal ion. Then, determine the formula, so that the compound is neutral (the ‘criss-cross’ method may be useful in determining the formula)

Ionic Nomenclature For example… magnesium bromide is made up of magnesium ions (Mg2+), and bromide ions (Br-) Mg2+ Br- So, the formula is MgBr2

Ionic Nomenclature sodium chloride barium fluoride potassium sulfide magnesium phosphide calcium oxide (try some more…)

Type II Ionic Nomenclature What is the name of: FeS? Fe2S3? AuF? AuF3?

Type II Cations Cu+ copper(I) cuprous Cu2+ copper(II) cupric Fe2+ iron(II) ferrous Fe3+ iron(III) ferric Sn2+ tin(II) stannous Sn4+ tin(IV) stannic Cr2+ chromium(II) chromous Cr3+ chromium(III) chromic Mn2+ manganese(II) manganous Mn3+ manganese(III) manganic Hg22+ mercury(I) mercurous Hg2+ mercury(II) mercuric Pb2+ lead(II) plumbous Pb4+ lead(IV) plumbic Co2+ cobalt(II) cobaltous Co3+ cobalt(III) cobaltic Au+ gold(I) aurous Au3+ gold(III) auric Ni2+ nickel(II) nickelous Ni3+ nickel(III) nickelic

Type II Ionic Nomenclature What is the formula of: copper(II) bromide? plumbous chloride? lead(IV) oxide? chromium(III) sulfide? manganic selenide?

Type II Ionic Nomenclature What is the name of: FeS Fe2S3 AuF AuF3 Pb2S3