| A | B |
|---|
| amino acid | any one of 20 different naturally occurring organic molecules that combine to form proteins |
| biochemical compound | any organic compound that has an important role in living things |
| bond angle | the angle formed by two bonds to the same atom |
| bond length | the average distance between the neclei of two atoms bonded to each other |
| carbohydrate | any organic compound that is made of carbon hydrogen, and oxygen and that provides nutrients to the cells of living things |
| chemical bond | the attractive force that holds atoms or ions together |
| chemical structure | the arrangment of bonded atoms or ions within a substance |
| covalent bond | a bond formed when atoms share one or more pairs of electrons |
| empirical formula | the simplest chemical formula of a compound that tells the smalles whole-number ratio of atoms in the compound |
| 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 |
| molecular formula | a chemical formula that reports the actual numbers of atoms in one molecule of a compound |
| organic compound | any covalently bonded compound that contains carbon |
| polyatomic ion | an ion made of two or more atoms that are covalently bonded that act like a single ion |
| polymer | a large organic molecule made of many smaller bonded units |
| protein | a biological polymer made of bonded amino acids |
