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The first person to think of the atom.
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The first one to come up with the name "atom"
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Believed in the four elements fire, air, water, and earth instead of the atom.
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He contibuted to the atomic theory (atoms are held together by attractions or forces)
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He came up with Dalton's atomic theory.
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He figured out that elements could be radioactive.
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He discovered electrons and came up with plum pudding atomic model.
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He did the Oil Drip experiment and found charges of individual electrons.
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He did the Gold Foil experiment and was credited for the discovery of the proton.
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He contributed to theory on electrons and a primitive hydrogen model.
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He invented the Mass Spectrograph and discovered isotopes.
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He used math equations to find the probability an electron would be in a certain position. (Quantum Mechanical Model of the Atom)
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He discovered the neutron.
