| A | B |
| Binary Compound | Compounds composed of two different elements. |
| Empirical Formula | The smallest whole number ratio of atoms. |
| Formula Mass | The masses of all atoms added together in a compound. |
| Monatomic Ions | Ions formed by single atoms. |
| Nomenclature | How different methods for naming compounds. |
| Oxidation Numbers | Are assigned to atoms to show the general distribution of electrons around the bonded atoms. |
| Oxidation States | Are assigned to atoms to show the general distribution of electrons around the bonded atoms. |
| Oxyacids | Acids containing hydrogen, oxygen, and a third element. |
| Oxyanions | Polyatomic ions that contain oxygen. |
| Percent Composition | The percentage of mass that each atom contributes to the entire formula. |
| Salt | A cation and anion formed together from an acid. |
| Simplest Formula | The smallest whole number ratio of atoms. |