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Contributed to atomism, theory that everything is made up of microscopic indivisible particles (first to suggest atoms)
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Discovered the Atomic Theory (every form of matter is made up of individual particles)
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Created periodic table
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Discovered the proton
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Discovered electron
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Discovered electric charge
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Discovered nucleus
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Discovered that electrons travel in separate orbits around the nucleus
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Created quantum theory and won the Nobel Prize for it
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Created the theory of quantum mechanics
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Created quantum mechanical model
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Discovered the neutron
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