Major Points*Binary compounds can be named systematically by following a set of relatively simple rules. For compounds containing both a metal and nonmetal, the metal is always named first, followed by a name derived from the root name for the nonmetal. For compounds containing a metal that can form more than one cation (Type II), we use a Roman numeral to specify the cation's charge. In binary compounds containing only nonmetals (Type III), prefixes are used to specify the numbers of atoms.
*Polyatomic ions are charged entities composed of several atoms bound together. These have special names that must be memorized. Naming ionic compounds that contain polyatomic ions is very similar to naming binary ionic compounds. *The names of acids (molecules with one or more H+ ions attached to an anion) depend on whether the anion contains oxygen VideosNomenclatures:
http://www.youtube.com/watch?v=9XUsOLaz3zY Acids: http://www.youtube.com/watch?v=hCxiAkqnHjM Activity |
Example Problems1. NH4
Ammonium 2. Sulfate SO4 -2 3. HCl hydrochloric acid 4. Nitric Acid HNO3 5. Iron (III) Oxide Fe2O3 6. K2O Potassium Oxide 7. CO2 Carbon Dioxide 8. MN(OH)2 Manganese (II) Hydroxide 9. Silicon Dioxide SiO2 10. Calcium Chloride CaCl2 Online Resources |