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300
Democritus 460-370 BCE
He thought that matter consist in invisible particles called atoms, that atoms where in destructive and solid but invisible, and homogenous. That all atoms had different shape,size, position, mass and arrangement, That solid are made of small pointy atoms, that everything you drink was large round atoms and finally that oils are made by small atoms that can split apart. -
Dalton 1766-1844
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Period: to
JJ Thomson
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Period: to
Ernest Rutherford
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Period: to
Niels Bohor
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Period: to
Chadwick
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Eugene Goldstein 1850-1930
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Joseph John Thompson 1856-1940
