| A | B |
|---|
| Democritus | atoms are made up of substances that can't be subdivided |
| Aristotle | All mater is uniform throughout and can't be subdivided |
| Dalton | Billiard ball |
| Thomson | chocoloate chip cookie dough |
| Bohr | onion model |
| Rutherford | peach model, discovered the nucleus |
| Chadwick | Discovered the Neutron |
| Moseley | Arranged periodic table by increasing Atomic Number |
| Mendeleev | Arranged the periodic able by atomic mass |
| Electron Cloud Model | bike spokes and fan model |
