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Chemistry Phosphorus was found in 1669 in Germany by Hennig Brand.
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Chemistry Nickel was found in 1751 in Sweden Axel Cronstedt.
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PB Kidz John Dalton thought atoms looked like solid spheres.
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The Periodic TableChemical Elements Dmitri Mendeleev created the first periodic table in 1869.
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Chemistry HistoryProton Eugene Goldstein discovered a positive particle, which he called a proton.
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Women's History Marie Curie discovered polonium and then radium.
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Chemical Heritage FoundationWikibooks J. J. Thomson thought the atom was a positively charged sphere with negatively charged electrons on the outside.
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The Encyclopedia of Science Ernest Rutherford thought that in the positively charged atom was a tiny nucleus and that the electrons are on the outside.
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Wikipedia Niels Bohr thought the atom was a small positively charged nucleus surrounded by electrons that orbited around the nucleus.
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