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Antoine Lavoisier
Antoine Lavoisier wrote the first extensive list of elements containing 33 elements & distinguished between metals and non-metals -
Antoine Lavoisier
Antoine Lavoisier wrote the first extensive list of elements containing 33 elements & distinguished between metals and non-metals -
Johann Dobereiner
Johann Dobereiner developed groups of 3 elements with similar properties -
Johann Dobereiner
Johann Dobereiner developed groups of 3 lements with simular properties -
John Newlands
John Newlands arranged the known elements in order of atomic weights & observed similarities between some elements -
Dmitri Mendeleev
Dmitri Mendeleev produced a table based on atomic weights but arranged 'periodically' with elements with similar properties under each other. His Periodic Table included the 66 known elements organized by atomic weights. -
Johann Dobereiner
Johann Dobereiner developed groups of 3 elements with similar properties -
William Ramsey
he discovered the noble gases -
Glenn Seaborg
Glenn Seaborg synthesised transuranic elements (the elements after uranium in the periodic table)