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Developed concept of atom.
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Made significant and lasting contributions to nearly every aspect of human knowledge.
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Recognized oxygen and hydrogen.
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Discovered law of constant composition.
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Identified the hereditary nature of red-green color blindness.
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Contributed to study of electromagnetism and electrochemistry.
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Studied properties of x-rays which had been discovered in 1895
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Performed a series of experiments in 1897 designed to study nature or discharge in a high-vacuum cathode-ray tube.
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They studied radioactivity. They discovered radium and polonium.
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Series of discoveries in the field or radioactivity and nuclear physics. He discovered beta and alpha rays.
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Discovered size or charge on an electron
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Electrons revolve in stable orbits around atomic nucleus.
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Discovered energy quanta.
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Discovery of neutron.
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Invented the atomic bomb.