| A | B |
|---|
| Matter | anything taking up space |
| Atoms | Bulding blocks of matter |
| Elements | Only one type of atom |
| Protons | particles that have a positive electric chage |
| Neutrons | particles that have no electron charge |
| Isotopes | Element that have different numbers of neutrons in their nuclei |
| Molecule | Two or more atoms |
| Compond | type of matter that has different properties of each elements |
| Chemical Properties | Substance that changes when it reacts with a other substances |
| Ions | Electrically charged atoms |
| Mixture | a combination of different substances that keep their own physuical and chemical properties despite being mixed |
| Electrons | negatively charged particles that move around the nucleus |
