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400 BCE
Democritus
The founder of the idea of the atom which he called "atomos" the Greek word for indivisible, this came from his belief that if you keep cutting a stone eventually you couldn't cut it futher -
John Dalton
Dalton created the first modern atom model called the plum pudding model. He also introduces the electron and proton -
J,J. Thomson
introduced the idea of the electron and created a new, "better" atom model -
Ernest Rutherford
created a new model based on his finds that most of an atom is void space and introduced the nucleus. -
Niels Bohr
Niels's model said that electrons moved in fixed orbits but with increasing of decreasing energy moves to a new ring of travel of even a different atom's orbit. -
Schrodinger
finalized the modern atom model where the position of the electrons can't be guaranteed
