| A | B |
|---|
| anion | any atom or group of atoms that has a negative charge |
| base | ionic compound that produces hydroxide ions when dissolved in water |
| ionic compounds | compounds composed of metal cations and nonmetal anions |
| binary compound | composed of two elements and can be either ionic or molecular |
| monatomic ion | an ion consisting of a single atom with a positive or negative charge |
| cation | any atom or group of atoms that has a positive charge |
| polyatomic ion | a tightly bound group of atoms that behaves as a unit and carries a charge |
| law of definite proportions | In samples of any chemical compound, the masses of the elements are always in the same proportions any atom or group of atoms that has a negative charge |
| naming binary ionic compounds | place cation name first followed by the anion name |
| naming polyatomic containing ionic compounds | place name of polyatomicor monatomic cation first followed by polyatomic or monatomic anion |
| naming binary molecular compounds | use prefixes to tell how many atoms of an element are present in each molecule of the compound |
| mono- | prefix meaning 1 atom is present in a binary molecular compound |
| di- | prefix meaning 2 atoms are present in a binary molecular compound |
| tri- | prefix meaning 3 atoms are present in a binary molecular compound |
| tetra- | prefix meaning 4 atoms are present in a binary molecular compound |
| penta- | prefix meaning 5 atoms are present in a binary molecular compound |
| hexa- | prefix meaning 6 atoms are present in a binary molecular compound |
| hepta- | prefix meaning 7 atoms are present in a binary molecular compound |
| octa- | prefix meaning 8 atoms are present in a binary molecular compound |
| nona- | prefix meaning 9 atoms are present in a binary molecular compound |
| deca- | prefix meaning 10 atoms are present in a binary molecular compound |
