click below
click below
Normal Size Small Size show me how
Atom Scientists
Shows some major atoms scientists and their contribution to the atomic theory
| Scientist | Contribution |
|---|---|
| Leucippus | Made Atomic theory |
| Democritus | Made the word "atom" meaning "indivisible." |
| John Dalton | Suggested many properties of atoms, including "an atom cannot be created or destroyed by a chemical reaction" |
| J.J. Thomson | Discovered electrons, charge, and proved atoms are divisible |
| Ernest Rutherford | Discovered the nucleus and proton and that atoms have lots of empty space. |
| James Chadwick | Discovered nuetrons |
| Niels Bohr | Discovered energy levels and made the Planetary Model |