Jons Jakob Berzelius
Date of Birth: 08/20/1779
Place of birth: Linkoping
Swedish chemist Jens Jakob Berzelius (1779-1848), was born in the family headmaster. His father died soon after his birth. Jacob`s mother remarried, but fell ill and died after the birth of her second child. Stepfather did everything to Jacob and his younger brother received a good education.
Chemistry Jakob Berzelius carried away only twenty years old, but at age 29 he was elected a member of the Royal Swedish Academy of Sciences, and two years later - president.
Berzelius on the experience confirmed many chemical laws, known at that time. The efficiency of Berzelius is striking: he spent in the laboratory for 12-14 hours a day.
Throughout his twenty years of scientific activity, he investigated more than two thousand substances and pinpoint their composition. He discovered three new chemical elements (cerium Ce, thorium Th and selenium Se), silicon Si first isolated in the free state, titanium Ti, zirconium, tantalum Ta and Zr.
Berzelius was busy theoretical chemistry, annual reviews of progress was the physical and chemical sciences, was the author of the most popular in those years textbook chemistry. Perhaps this caused him to enter into a chemical usage comfortable modern notation elements and chemical formulas.
Berzelius married only 55 years old at twenty-four Johanna Elizabeth, the daughter of his old friend Poppiusa, State Chancellor of Sweden. Their marriage was a happy one, but had no children. In 1845 Berzelius health deteriorated. After a particularly severe attack of gout he were paralyzed both legs. In August 1848 in the seventieth year of life Berzelius died. He is buried in a small cemetery near Stockholm.
In 1838, in a letter to the German chemist Justus von Liebig Berzelius wrote: "When discussing science should be no enemies, no friends if you are fighting against what you think is wrong, do not pay attention to the personality is mistaken.".