| A | B |
|---|
| Einstein | E= mc2 |
| Proust | law of definite proportions |
| Becquerel | ability of uranium to expose photographic film |
| The Curie's | Ability of radium to give off rays |
| Geiger & Marsdan | positively charges nucleus |
| Millikan | electron's charge |
| Thomson | electron's charge to mass ratio |
| Lavoisier | law of conservation of mass |
| Dalton | law of definite proportions |
| Chadwick | discovered neutrons |
| Democritus | called the smallest particle, atom |
| Aristotle | believed in Hyle |
