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Thought everything was made of water
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Thought matter couldnt be divided into smaller pieces forever and came up with the atom
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Believed him instead of Democritus but Democritus was right;
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gravity, laws of motion, light spectrum
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atoms are indivisible and indestructible all atoms of an element are identical atoms are different elements are different atoms are different elements combine in simple whole numbers to form compounds atoms cannot be created or destroyed
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thought the atom was solid
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discovered the electron
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mass and charge of electron
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discovered the nucleus and proton
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discovered model of atom
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discovered isotopes
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schrodinger model
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approved nucleus existed