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Chancourtois Vis Tellurique

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Chancourtois devised the first periodic table of the elements based on increasing atomic weight.

de Chancourtois devised the first periodic table of the elements based on the increasing atomic weight of the elements. de Chancourtois' periodic table was called the vis tellurique, since the element tellurium was in the middle of the table.

Alexandre-Emile Béguyer de Chancourtois
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