| A | B |
|---|
| Compound | a substance that is made when two or more elements join chemically |
| Solution | A kind of mixture in which one substance is dissolved into another |
| Chemistry | the scientific study of what substances are made of and how they can change when they combine with other substances |
| Density | the amount of matter per unit volume |
| Neutrons | matter with a particles with no electrical charge, found within the nucleus of an atom |
| Electrons | particles with negative electrical charges, surrounding the nucleus of an atom |
| Protons | particles with positive electrical charges, found within the nucleus of an atom |
| mixture | a substance that is made when two or more elements mix but do not join chemically |
