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Naming compounds
Naming inorganic compounds
| Question | Answer |
|---|---|
| Naming Cations | Cations formed from metal atoms have the same name as the metal |
| Naming Cations | If a metal can form different cations, the positive charge is indicated by a Roman numeral in parentheses following the name of the metal. |
| Naming Cations | Cations formed from nonmetal atoms have names that end in -ium |
| Naming Anions | The names of monatomic anions are formed by replacing the ending of the name of the element with -ide |
| Naming Anions | Polyatomic anions containing oxygen have names ending in -ate or -ite |
| Naming Anions | Anions derived by adding H+ to an oxyanion are named by adding as a prefix the word hydrogen or dihydrogen, as appropriate |
| Naming Ionic Compounds | Names of ionic compounds consist of the cation name followed by the anion name. |
| Naming acids | Acids containing anions whose names end in -ide are named by changing the -ide ending to -ic, adding the prefix hydro- to this anion name, and then following with the word acid |
| Naming acids | Acids containing anions whose names end in -ate or -ite are named by changing -ate to -ic and -ite to -ous, and then adding the word acid. |
| Naming binary molecular compounds | The name of the element farther to the left in the periodic table is usually written first |
| Naming binary molecular compounds | If both elements are in the same group in the periodic table, the one having the higer atomic number is named first |
| Naming binary molecular compounds | The name of the second element is given an -ide ending |
| Naming binary molecular compounds | Greek prefixes are used to indicate the number of atoms of each element |
| Greek prefix, 1 | Mono- |
| Greek prefix, 2 | Di- |
| Greek prefix, 3 | Tri- |
| Greek prefix, 4 | Tetra- |
| Greek prefix, 5 | Penta- |
| Greek prefix, 6 | Hexa- |
| Greek prefix, 7 | Hepta- |
| Greek prefix, 8 | Octa- |
| Greek prefix, 9 | Nona- |
| Greek prefix, 10 | Deca- |