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Period: 400 BCE to 400 BCE
Democritus
Thought of The Theory of the Universe. He thought if you take a piece of matter and divide it, it will continue to divide -
Period: to
John Dalton
The first to adapt Democritus' theory. He thought of the atomic model -
Period: to
JJ Thompson
Discovered the electron as well as the cathode ray tube. He had his own model, The Plum Pudding Model -
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Ernst Rutherford
Not convinced by Thompson's model. The Rutherford Model then came into play -
Period: to
Niels Bohr
The Bohr Model added to what Rutherford's model had -
Period: to
Erwin Schrodinger
Came up with the Quantum Mechanics Model that we still use today