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Thought everything including life came from water.
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Thought their was an atom.
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Thought atoms moved around and did not stay in place.
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Came up with the atomic theory.
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Discovered radio activity.
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Discovered electrons
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Atoms contain a nucleus made of protons.
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Determined the change and mass of an electron.
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Shows electrons in atoms are different energy around a nucleus.
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Discovered isoptopes
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Quantum model
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Discovered evidence towards the existance of neutrons
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Fired helium atoms at a sheet of gold. Finding out that not all went straight through.