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He Concluded that all matter consisted of atoms. These atoms could not be divided any further and were all comprised of the same primary matter.
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Introduced Quantative Chemistry and Internal Combustion
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He Created the Definite law of proportions
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Created Dalton's Atomic Theory (As Listed)
- Matter is composed of small particles called atoms. 2. All atoms of an element are identical, but are different from those of any other element. 3. During chemical reactions, atoms are neither created nor destroyed, but are simply rearranged. 4. Atoms always combine in whole number multiples of each other. For example, 1:1, 1:2, 2:3 or 1:3.
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Created the first Periodic table of elements
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Created the Planck Constant, Planck Postulate and the Planck's law of black body radiation.
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Henri accidently discovers Radioactivity while experimenting with Phospheresence in Uranium salts.
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Made contributions to the discovery of radioactivity
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J.J. Thomson discovers the electron
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Discovered the Atomic Nucleus. Invented the "Geiger Counter"
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Worked with the United States on the "Manhattan Project"
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He came up with schrodinger's equation which helped predict energy of atoms and their electrons.
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He worked on the ionization of phosphorus and also on the photo-chemical reaction of carbon monoxide and chlorine. James was also affiliated with the "Manhattan Project"
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Mass of electon determined
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Atominc Number determined, Reorganized the periodic table of elements.
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Confirmed the excistence of the Proton, Proposed the idea of the nuetron.
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Nuetron identified
