| A | B |
|---|
| atom | The smallest part of an element |
| over 100 | Number of elements |
| proton, neutron, electron | Three parts of atoms |
| electron | This orbits the nucleus of the atom |
| negative | The charge on an electron |
| no charge | The charge on a neutron |
| molecule | 2 or more elements that are joined. |
| solution | A substance dissolved in a liquid is this; cannot be separated by physical means |
| solid, liquid, gas | The 3 states of matter |
| protons, neutrons | The 2 parts found inside the atom |
| positive | The charge on a proton |
| compound | Made of 2 or more elements |
| Mixture | This is easily separated; substances keep their identifying characteristics |
| H2O | Chemical name for the compound water |
| NaCl | Chemical name for compound table salt |
| liquid | State of matter with no definite shape, but has a definite volume; molecules fairly close, but can slide past one another |
| gas | State of matter with no definite shape and no definite volume; molecules are far apart and move quickly |
| solid | State of matter with a definite shape and a definite volume; molecules are tightly packed and can only vibrate |
