1. Ionic Compounds: Naming

2. First Step in Naming Find metal If metal has only one oxidation state it’s easy If metal has more than one oxidation state, there’s an extra step

3. Naming Binary Ionic Compounds 1.Always name metal (+ ion) first stem 2. Write stem nonmetal (- ion) 3. Add ending “ide” to nonmetal

4. Hydrogen = hydr Nitrogen = nitr Oxygen = ox Fluorine = fluor Chlorine = chlor Bromide = brom Iodide = iod Phosphorus = phosph Sulfur = sulf Tellurium = tellur Sellenium = selen Arsenic = arsen

5. Metals with one oxidation state CaO BaS AlN LiCl Al 2 Se 3 Na 2 O K 3 N MgF 2 Calcium Oxide Barium Sulfide Aluminum Nitride Lithium Chloride Aluminum Selenide Sodium Oxide Potassium Nitride Magnesium Fluoride

6. Metals with > 1 oxidation state Use formula to figure out oxidation state metalUse formula to figure out oxidation state metal orEx: Fe can be Fe +2 or Fe +3 Name FeO and Fe 2 O 3 – 2 different – 2 different compounds – cannot name both iron oxide – every formula has 1 name only

7. FeO and Fe 2 O 3 Compounds are electrically neutral Oxygen is -2 FeO Name: Iron (II) oxide (II = 2 for + 2 charge on Fe) 1 O (-2) so Fe must be +2 so Fe must be +2

8. FeO and Fe 2 O 3 Fe 2 O 3 O is -2 3 O’s [3 x (-2) = -6] total negative charge Total positive charge must be +6 So each Fe is +3 Iron (III) oxide

9. TiCl 3 Mn 2 O 4 Co 2 O 3 PdBr 2 AuCl 3 MoN MnO TiO Titanium (III) chloride Manganese (IV) oxide Cobalt (III) oxide Palladium (II) bromide Gold (III) chloride Molybdenum (III) nitride Manganese (II) oxide Titanium (II) oxide

10. Summary for Binary Ionic Compounds Formula: positive first, always metal > 1 oxidation state, name needs roman numeral Name = metal + stem nonmetal + ide