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460 BCE
Democritus
Democritus was Greek philosopher who proposed the idea that matter is made of tiny, indivisible, indestructible particles that he called atomos, from which the English word atom(meaning indivisible) is derived. -
John Dalton
The name of the theory that John Dalton has created is called the Dalton's Atomic Theory. Dalton discovered that all elements are made up of something called atom. -
J.J. Thompson
J.J. Thompson was a English scientist who discovered that electron when he was experimenting with gas discharged tubes. By doing this he discovered electrons. -
Lord Ernest Rutherford
Lord Ernest Rutherford did something called the gold foil experiment. He discovered that atoms are made of a small positive nucleus; positive nucleus repels (pushes away) positive alpha particles. -
Niels Bohr
Niels Bohr was a Danish physicist. He proposed a model of the atom that is similar to the model of the solar system.
