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500 BCE
Democritis
Democritus found out that everything is amde out of smaller particels called atoms. -
Dalton
Dalton developed his theory of atoms and matter. -
JJ Thomson - The Plum Pudding
JJ Thomson discovered the Electron, by experimenting using electric charges. -
Rutherford
Rutherford developed the planetary model of the atom. He made the first atomic model. -
Bohr
Bohr developed another model of the atom and used laws of quantum physics to make a updated model. -
James Chadwick-Bohr
Chadwick was the one to complete the atomic model, by discovering Neutrons.