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First to suggest the system of atoms
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Theory of all matter was made of atoms
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Created the first periodic table
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Discovered protons with the experiments of cathode rays that would knock electrons of atoms and charge them to a positively charged electron
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Discovered the electron
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Originator of the quantum theory
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Oil drop experiment helped to quantify the charge of an electron which contributed to our understanding of the structure of an atom
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Demonstrated that the atom has a heavy nucleus
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Said the hydrogen atom based on quantum theory, that energy is transfered in certain quantities
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Used mathematic equations to describe the likelihood of finding an electron in a certain position
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Discovered the neutron
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Theory of quantum mechanics
