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Democritus
He said everything was made of an atom. His method was that he cutt a piece of bread in half.
Said that the atom had spikes on them.
460bc -
Aristotle
Descoverd air,earth,fire,and water and that you will always have a smaller atom. 340bc -
Dalton
Said the first atom was made up of little particles. He used his imagnation on how the atoms looked.
1808bc -
Thomson
He discoverd that electrons are in an atom and that electrons are smaller than atoms. -
Rutherford
Discoverd nucleus most of atom is empty space. He did the gold foil experiment.
1911 -
Bohr
Said that electrons orbit around the nucleus.
Made a Plantary Model and called it the Bohr Model.
1913 -
Heisenberg and Schrodinger
Found the electron in an certain place.
He did an Mathmatical Model and called it the "Quantum Mechanical model.
1926