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Born on 460 B.C. He was a Greek philosopher who made a mental model of the atom.
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He developed a theory of chemical reactivity of oxygen. Also co-authored the system for naming chemicals.
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He came up with the law of definite proportions 1793. Proved that the relative quantities of any compound's constituent elements remain constant.
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He was the first scientist to explain the behavior of atoms in terms of the measurement of weight. Dalton formed the atomic theory model of the atom and he was also an English schoolteacher.
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In 1832 he split molecules with electricity, which developed the laws of electrolysis.
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Proposed by John Dalton in 1803.
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In 1896 his greatest discovery was made; radioactivity. He came upon the evidence nearly by accident!
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His research led him to discover the electron with a cathode ray tube. Thomson also proposed the "plum-pudding" model of the atom.
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1900- used the idea of quanta to explain hot glowing matter. Quanta is discrete units of energy.
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He and his wife Marie discovered polonium and radium.
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In 1898, her and her husband Pierre discovered polonium and radium. After Pierre died, the development of X-rays.
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He measured the charge of an electron, by the oil drop experiment.
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He was the first to split the atom. Rutherford also discovered the nucleus and created the gold foil experiment.
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It was 1938 when Meitner verified that heavy elements capture neutrons and form unstable products.
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In 1938, Hahn and Fritz Strassmann discovered nuclear fission.
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Einstein created the theory of relativity. He also published the famous equation E=mc 2
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Bohr developed the model of the atom in which electrons orbit the nucleus in energy levels. He did this with the planetorium model.
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In 1926 he wrote the wave equation. This was a thougth that electrons moved like wave mechanics.
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He discovered the neutron in 1932.
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He had discovered that electrons had a dual nature, they were similar to both particles and waves.
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This model was used by J.J. Thomson and he discovered the electron.
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In 1941-1951 he synthesized six transuranium elements. Also he suggested a change in the periodic table.
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Bohr used this to discover that electrons are in energy levels around the nucleus.
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Schrodinger had used this type of model.
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The current model of the atom; proposed by Schrodinger.
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Born on 384 B.C. He was the author of scientific system that became framework/vehicle for Christian Scholasticism.
