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one of the first to discover the atomic theory, came up with the 1st atomic model.
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Proposed that all matter is composed of atoms
Billiard ball model -
tried to see how much charge an electron has. oil drop experiment
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discovered the electron experimenting with crookes
plum pudding model -
Over turned Thomson´s model and discovered the radio active element plum pudding model (motified)
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Proposed for the hydrogen atom based on Quantun structure of solar system