| A | B |
|---|
| matter | anything that has mass and takes up space |
| element | form of matter containing only one type of atom |
| atom | a building block of matter |
| protons | positively charged particles inside the nucleus of an atom |
| neutrons | particles in an atom's nucleus that don't have an electrical charge |
| electrons | negatively charged particles outside the nucleus of an atom |
| isotopes | atoms of an element with different atomic names but the same atomic number |
| solution | another name for a homogenous mixture |
| compound | water |
| mixture | sweetened tea |
| chemical properties | causes of iron changing to rust when it reacts with water |
| mass number | the number of protons and neutrons in an atom's nucleus |
| ion | an electrically charged atom |
| density | mass divided by volume |
| physical properties | density and the state of matter |
| solid | state in which atoms are strongly attracted and do not change position |
| plasma | the most common state of matter in the universe |
| gas | state in which a substance completely fills its container |
| liquid | state in which matter flows as it takes the shape of a container |
| atomic number | the number of protons in an atom's nucleus |
| cohesion | force between particles that holds them tightly together |
| adhesion | force between two bodies that are not alike that holds them together |
