Ionic Compounds Naming Naming Binary Ionic Compounds 1

Ionic Compounds: Naming

Naming Binary Ionic Compounds 1. Always name metal (the cation/+ ion) first 2. Write stem of nonmetal (the anion/ - ion) 3. Add ending “ide” to nonmetal Binary = only 2 types of elements (two capital letters)

Stems of nonmetals Nitr Ox Fluor Phosph Sulf Chlor Arsen Selen Brom Tellur Iod Hydr is the stem for H

Metals with one oxidation state • • Ca. O Calcium Oxide Ba. S Barium Sulfide Al. N Aluminum Nitride Li. Cl Lithium Chloride Al 2 Se 3 Aluminum Selenide Na 2 O Sodium Oxide K 3 N Potassium Nitride Mg. F 2 Magnesium Fluoride

The First Step in Naming • Find metal on PT • If metal has only one oxidation state it’s easy • If metal has more than one oxidation state, there’s an extra step

Metals with > 1 oxidation state • Use formula to figure out which oxidation state metal ion has • Ex: Fe can be Fe+2 or Fe+3 • Name Fe. O and Fe 2 O 3 –

Fe. O Name: Iron (II) oxide (roman numeral II = charge on Fe)

Fe 2 O 3 Name: Iron (III) oxide (roman numeral III = charge on Fe)

Name the following • Ti. Cl 3 Titanium (III) chloride • Mn. O 2 Manganese (IV) oxide • Au. Cl 3 Gold (III) chloride • Mn. O Molybdenum (III) nitride

Naming compounds with polyatomics • If it contains a polyatomic, same rule, just write the name polyatomic ion (Table E)

Name the following • Na. OH Sodium hydroxide • Li. NO 3 Lithium nitrate • Al(NO 3)3 Aluminum nitrate • Fe(OH)2 Iron (II) hydroxide