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Discovery that Mass remains the same in different forms
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Discovered matter is neither created nor destroyed.
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Created the first atomic theory. Made the solid sphere model of an atom.
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Discovered electrolysis, which is the splitting of molecules with electricity.
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Discovered that some chemicals spontaneously decompose and give off very penetrating rays.
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Detected electrons using cathodrayed tube. The inventor of the "plum pudding" model.
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Discovered that the atom is made up of empty space. Also studied radiation emitted from uranium and thorium. Original inventor of the Planetary model.
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Marie discovered radioactivity. Pierre discovered polynium and radium.
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Used the idea of quanta to explain hot glowing matter.
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Published the famous equation e=mc2.
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Determined the charge and the mass of an electron. Also had interesting work on the photoelectric effect.
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Discovered electrons exist in energy levels. Modified Rutherford's planetary model.
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Discovered that electrons had a duel nature. They are similar to both particles and waves.
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Made an atomic model based on probability. Discovered the electron cloud.
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Discovered nuetrons.
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Synthesized 6 transuranium elements and suggested a change in the layout of the periodic table.
