Scientist of chemistry

Richard Wilhelm Heinrich Abegg — was a German chemist[1] and pioneer of valence theory.

John dalton contribution to chemistry

Because of his research he proposed that the difference of the maximum positive and negative valence of an element tends to be eight. This has become to be called Abegg's rule. He was a gas balloon enthusiast, which caused his death at the age of 41 when he crashed in his balloon in Schlesien. Abegg learned organic chemistry from Hofmann, but one year after finishing his PhD degree turned to physical chemistry while studying with Ostwald Leipzig.

He discovered the theory of freezing point depression and anticipated Lewis' octet rule by pointing out that the lowest and highest oxidation states of elements often differ by eight. He studied alkali metal polyiodides, electrochemical potentials in non-aqueous solutions, and the dielectric constant of ice. He was born in Danzig.

In , Abegg became Privatdozent and one of the leaders of the chemical institute in Breslau. One year later he became a professor at the university. Clara Immerwahr first wife of Fritz Haber studied and graduated under him. Abegg occupied himself with photography and hot balloon trips. He was the founder and chairperson of the Silesian club for aeronautics in Breslau.

List of chemistry scientists

Furthermore, he practiced an assessor's function in the presidency of the German air sailors' association. His wife Lina was also a ballooning enthusiast. Abegg introduced the concept of the electro-affinity into chemistry and made the basis for the handbook of the inorganic chemistry —