| A | B |
| acid | substance that raises amount of H+ ions |
| atom | smallest particle of element |
| atomic mass | mass of protons and neutrons |
| atomic number | number of protons |
| base | substance that raises OH- ions |
| chemical reaction | change in physical and chemical properties of substance |
| chemical properties | characteristic description of how a chemical will react |
| electron | negatively charged particle |
| compound | substance made of two or more different atoms |
| corrosion | reaction of oxidation |