| A | B |
|---|
| chemical bond | the attractive force that holds atoms or ions together |
| chemical structure | the arrangement of bonded atoms or ions within a substance |
| bond length | the average distance between the nucliei of two bonded atoms |
| bond angle | the angle formed by two bonds to the same atom |
| ionic bond | a bond formed by the attraction between oppositely charged ions |
| metallic bond | a bond formed by the attraction between positively charged metal ions and the electrons around them |
| covalent bond | a bond formed when atoms share one or more pairs of electrons |
| polyatomic ion | an ion made of two or more atoms that are covalently bonded and that act like a single ion |
| empirical formula | the simplest chemical formula of a compound that tells the smallest whole-number ratio of atoms in the compound |
| molecular formula | a chemical formula that reports the actual numbers of atoms in one molecule of a compound |
