Began by organizing the elements by atomic weight and realized that they would go from a halogen to an alkali metal to an alkaline earth metal
From 1869-1871 he revised and added the elements to fit into the table he had created
He altered the accepted atomic weights to make them fit because there were the transition metals and the rare earth metals that didn’t fit the pattern that he discovered before
Many people were questioning his decision to change the elements masses but they thought that they organization was good and so it might work out. He was also considered one of the greatest chemists at the time.
Sacks, Oliver. “Best Invention Everything in Its Place.” New York Times Magazine. April 18, 1999. Newsbank. http://infoweb.newsbank.com/iw-search/we/InfoWeb?p_product=AWNB&p_theme=aggregated5&p_action=doc&p_docid=11421F7941D12DC6&p_docnum=4&p_queryname=2
Mendeleev’s Table. History Resource Center: World. http://galenet.galegroup.com/servlet/History/hits?docNum=CD2210013968&tab=16&locID=menlo_schlib&origSearch=false&hdb=MW&t=RK&s=1&r=d&
items=0&secondary=true&o=&sortOrder=RE&n=10&l=dI&sgPhrase=true&c=1&tabMap=114&bucket=
img&SU=periodic+table
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