| A | B |
|---|
| atom | basic unit of matter |
| nucleus | center of an atom |
| electron | negatively charged particle |
| proton | positively charged particle |
| neutron | neutral particle |
| element | made of only one type of atom |
| ionic bond | transfers electrons |
| covalent bond | shares electrons |
| ion | positively or negatively charged atom |
| isotope | atom with a different # of neutrons |
| adhesion | attraction between different substances |
| cohesion | attraction between molecules of the same substance |
| mixture | physical combination of substances |
| solution | evenly distributed mixture |
| suspension | wanter and nondissolved material |
| catalyst | speeds up a chemical reaction |
| solute | substance that gets dissolved |
| solvent | substance into which something dissolves |
| acid | pH of 0-6 |
| base | ph of 8-14 |
