Biography of a e béguyer de chancourtois
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History of the Periodic Table
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1862 — The first periodic table was created by A.E.Beguyer de Chancourtois. He assembled the table by making a list of the elements positioned on a cylinder in terms of increasing atomic weight.
1864 — Newlands published his version of the periodic table and proposed the Law of Octaves (by analogy with the seven intervals of the musical scale).
1869 — Dmitri Mendeleev published his periodic table, eventually becoming the “father of the periodic table.”
1870 — Lothar Meyer published his version of the periodic table.
1911 — Ernest Rutherford published studies of the scattering of alpha particles by heavy atom nuclei which led to the determination of nuclear charge.
1911 — That same year A. van den Broek established that the atomic weight of an element was approximately equ
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The history of the periodic table
The rectangular periodic table is familiar to anybody who has ever been in a science laboratory or classroom. This ingenious functional grouping of the chemical elements was created by several europeisk scientists in the decade of the 1860's. In 1863, a 44 year old French geologist, A. E. Béguyer de Chancourtois created a list of the elements arranged by increasing atomic weight. The list was wrapped around a cylinder so that several sets of similar elements lined up, creating the first geometric representation of the periodic law.
In England, 32 year old analytical chemist John A. R. Newlands was also wrapping the elements, noting that chemical groups repeated every eight elements. He named this the octave rule, and compared it to a musical scale. Some less observant members of the English kemikalie Society considered this absurd, so his work was ignored for years.
Chemists Dmitrii I. Mendeleev, a Russian, and German Lothar Meyer
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De Chancourtois was born in Paris. At age eighteen, he entered the renowned École Polytechnique, one of the best known French grandes Écoles of engineering and management. After completing his studies at École Polytechnique, dem Chancourtois went on a geological expedition into Hungary, Armenia and Turkey. In 1848, de Chancourtois went back to Paris and joined the teaching faculty as professor of mine surveying at the école Nationale Supérieure des Mines de Paris.
dem Chancourtois led several overseas expeditions during the course of his life and served as the Inspector of Mines in Paris from 1875 until his death. As a mine inspector, he introduced safety laws to prevent methane gas explosions, which were frequent occurrences at the