1. Chemical Nomenclature
Sodium chloride NaCl
Carbon dioxide CO2
Copper(II) chloride CuCl2
Chemical Nomenclature
Naming compounds and
writing the formulas of compounds

3. 3 Sets of Rules of Naming Rules
Class or Type I - Ionic Bond between metal predictable + charge and a negative nonmetal or polyatomic ion ; name cations, anion ends in “ide”
Examples: NaCl – sodium chloride ; MgCl2, magnesium chloride
Class or Type II- Ionic Bond with variable oxidation state transition metal; Roman numerals used to specify charge of transition metal
Example: CuCl2 – copper(II) chloride
Class or Type III – Covalent bonds between Two nonmetals; uses prefixes
Example: CO2 – carbon dioxide; N2O4 – dinitrogen tetroxide

4. Naming Rules “Short version”
CLASS OR TYPE 1: NAME THE IONS
Example: MgCl2 magnesium chloride
CLASS OR TYPE 2: ROMAN NUMERALS
Example: CuCl2 copper(II) chloride
CLASS OR TYPE 3: PREFIXES
Example: CO2, carbon dioxide

5. Location of First Element in Formula determines class rules+1
Class or Type I +2 +3
Class or Type II
Class or Type III +1 +2

6. Location of First Element in Formula determines class rules+1
Class or Type I +2 +3
Class or Type II
Class or Type III +1 +2

7. Location of First Element in Formula determines class rules+1
Class or Type I +2 +3
Class or Type II
Class or Type III +1 +2

8. Homework 2-9 SnBr4 ___ AlH3 ___ FeO ___ OF2 ___
XeF6 ___ Ca3N2 ___ CBr4 ____ MnF2 ____
Lithium oxide ____ diboron hexachloride ___
Copper(I) hydroxide ___ barium nitrate ___
Cobalt(II) sulfate ____ sulfur dioxide ____

9. Homework 2-9 SnBr4 ___ AlH3 ___ FeO ___ OF2 ___II I II
III
SnBr4 ___ AlH3 ___ FeO ___ OF2 ___
XeF6 ___ Ca3N2 ___ CBr4 ____ MnF2 ____
Lithium oxide ____ diboron hexachloride ___
Copper(I) hydroxide ___ barium nitrate ___
Cobalt(II) sulfate ____ sulfur dioxide ____
III I
III II I
III II I II
III