Tag: telluric screw

1862 – De Chancourtois' Telluric Screw

The French geologist Alexandre-Émile Béguyer de Chancourtois was the first scientist to see the periodicity of elements when they were arranged in order of their atomic weights. Credited with being the original discoverer of the periodicity of elements and the originator of the three-dimensional method of element arrangement and representation. He drew the elements as a continuous spiral around a metal cylinder divided into 16 parts. The atomic weight of oxygen was taken as 16 and was used […]

Added by: Fanny Chevalier. Category: Uncertain  Tags: chemistry, periodic table, telluric screw