| A | B |
| All matter has: | mass and volume |
| 4 Stages of matter are : | solid, liquid, gas, plasma |
| Smallest unit of matter that still retains all characteristics | atom |
| John Dalton gave us the : | Atomic theory |
| Rutherford said an atom was: | mostly space |
| Thompson said the atom resembled a: | plum pudding |
| mass and volume make up all: | matter |
| These have a positive charge in the atom | protons |
| These have a negative charge in the atom | electrons |
| These have no charge in the atom | nutrons |
| An alpha particle has a _____ charge | positive |
| "Atmos" means | can not be divided |
| Geocentric means | the earth is the center of the universe |
| The nucleus of an atom contains | protons and nutrons |
| This part of the atom has no mass | electron |