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First person to publicly wonder what tha world around him was made of
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First person to come up with the atomic theory
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Instead of atoms,thought of world as made up of four elements
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contributed to the atomic theory
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First person to come up with Atomism and Dalton's Atomic Theory.
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Discovered Radioactivity
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discovered the electron and updated the model of the atom
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found charge of a single electron
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discovered the proton and nucleus and updated the atomic model
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discovered electrons have a certain orbit they follow
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discovered the mass spectograph and 212 isotopes
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used math equation to find the probabilty an electron would be in a certain position
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discovered the neutron