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Atomic Structure
| TERM | DEFINITION |
|---|---|
| Democritus | First person to define an atom as the smallest particles he could crush |
| Electron | negatively charged particle |
| proton | positively charged particle |
| atom | smallest particle with the properties of a particular element |
| Dalton | Scientist who proposed that atoms where spherical in shape |
| charge | when an atom is positive or negative due to the less or gain of electrons |
| isotope | atoms with more or less neutrons than normal |
| Rutherford | Scientist who proved that atoms were mostly space |
| atomic mass | average weight of the atoms making up a particular |
| nucleus | center of atom |