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Chemistry Test
| Scientist | What they did |
|---|---|
| Neils Bohr | Developed the "Planetary Model of the Atom" |
| Aristotle | believed that matter consisted of four elements: earth, wind, fire, and water |
| Democratus | Coined the term "atoms," meaning "indivisible" |
| John Dalton | Created the first Atomic Theory supported by scientific evidence |
| Robert Millikan | developed the "oil drop experiment" |
| Robert Millikan | Calculated the mass of the electron |
| James Chadwick | Experimented with "anode rays" |
| James Chadwick | Discovered neutrons |
| Antoine Lavoisier | Discovered the Law of Conservation of Mass |
| J.J. Thomson | Experimented with cathode ray tubes |
| J.J. Thomson | Discovered the electron |
| J.J. Thomson | Created the Plum Pudding Model of the atom |