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He thought everthing was made by water & the world floated on water
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All matter was made of atoms.
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All substances were made of fire, earth, water, & air.
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Matter is formed of solid impenitrable particles.
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First atomic theory, evidence based.
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discovered radio active
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Discovered electron.
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discovered nucleus.
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Found the charge of the electron
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Thought that electrons orbited the nucleus
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Proved Bohr model wrong.
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discovered the neutron