| A | B |
|---|
| Democritus | Coined Word "Atom", made scientific theory |
| Lavosier | Law of Conservation of mass |
| Proust | Law of Definate proportions |
| Dalton | La of Multiple Perportions, Modern Atomic Theory |
| Avogadro | Hypothesis - same volume, same # particles in same conditions |
| JJ Thompson | electron; charge to mass ratio |
| Millikan | electron charge, Oil Drop Experiment |
| Chadwick | discovered neutrons |
| Mosely | atomic numbers, modern periodic table |
| Rutherford | Gold Foil experiment |
| Bohr | planetary model of atom |
| Planck | making of energy - Planck's constant |
| Einstein | photoelectric effect |
