1. Naming Ionic Compounds PAGE 5 OF INB

2. Essential Question  Why do scientist have two different methods for naming ionic compounds?

3. Monatomic Ions  Nomenclature: a systematic method for naming compounds and writing chemical Formulas.  Monatomic ions: Ions formed from a single ion.  Charge is determined from number of electrons gained or lost.  Cations: element name + cation  Anion: drop the ending and replace with –ide.

4. Anions 1-2-3- FluorineFluorideOxygenOxideNitrogenNitride ChlorineChlorideSulfurSulfidePhosphorousPhosphide BromineBromide IodineIodide

5. Binary Ionic compounds  Total charge of the compound must equal zero.  If charges are the same just write the two ions  If charges are different then use cross-over method to get the correct number of each ion to make the compound neutral.

6. Naming Ionic Compounds  Combine the cation and anion names.  Cation always goes first.  Nothing to indicate ratio of atoms, because they are known by the charge of the ions.

7. Practice problems: Binary Ionic compounds  1) CaBr 2  2) SrF 2  BaO  Magnesium Fluoride  Sodium sulfide  Aluminum Nitride  Potassium Iodide

8. %#%^** Transition Metals  Use second Nomenclature method, the stock method.  Used because the transition metals can have more then one charge.  Use roman numerals to indicate the charge of the ion  Enclosed in (parentheses) and placed after the metal.

9. Practice Problems: Transition metals (stock System)  Copper(II) Bromide  Lead(II) Chloride  Iron(III) Oxide  CoF 3  SnI 4  FeS