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Robert Boyle discover phosphorus in 1680 and it went public
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In 1809 47 more elements were discover and began to see the different patterns and characteristics
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John Newlands divided and discover 56 elements into 11 groups based on there characteristics
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Dimitri Mendeleev started the development of the periodic table arranging chemical elements by atomic mass
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William Ramsay discovered the noble gases which were added to the table as a group 0
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Physicist I thosom discover electrons small negative charge particles in a atom
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Rutherford discover discover electrons orbit the nucleus of an atom
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James Chadwick first discover neutrons and isotopes were identified this complete the basics for the periodic table