This was later rejected in the 1820s and 30s following more refined measurements of atomic mass, notably by Jöns Jacob Berzelius, which revealed in particular that the atomic mass of chlorine was 35. 45, which was incompatible with the hypothesis.

The term was coined in 1833 by Jöns Jacob Berzelius, although his definition of a polymer was quite different from the modern definition.

Proteins were first described by the Dutch chemist Gerardus Johannes Mulder and named by the Swedish chemist Jöns Jacob Berzelius in 1838.

In the nineteenth century it was again revived in modern form by several scientists, including Jöns Jacob Berzelius ( 1834 ),

Jöns Jacob Berzelius ( 1779 – 1848 ) was instrumental in the determination of atomic weights to ever-increasing accuracy.

# REDIRECT Jöns Jacob Berzelius

# REDIRECT Jöns Jacob Berzelius

# REDIRECT Jöns Jacob Berzelius

* Jöns Jacob Berzelius, 1818 – 1848

Silicon carbide was first synthesized by Jöns Jacob Berzelius, who is best known for his discovery of silicon.

Proust published this paper in 1794, but the law was not accepted until 1812, when the Swedish chemist Jöns Jacob Berzelius gave him credit for it.

# REDIRECT Jöns Jacob Berzelius

# REDIRECT Jöns Jacob Berzelius

# REDIRECT Jöns Jacob Berzelius

Some were zealous pastors of their flocks, such as Jarler and others ; some were distinguished canonists, such as Birger Gregerson ( 1367 – 83 ) and Olof Larsson ( 1435-8 ); others were statesmen, such as Jöns Bengtsson Oxenstjerna ( d. 1467 ), or capable administrators, such as Jacob Ulfsson Örnfot, who was distinguished as a prince of the Church, royal councillor, patron of art and learning, founder of the University of Upsala and an efficient helper in the introduction of printing into Sweden.

Some were zealous pastors of their flocks, such as Jarler and others ; some were distinguished canonists, such as Birger Gregersson ( 1367 – 83 ) and Olof Larsson ( 1435-8 ); others were statesmen, such as Jöns Bengtsson Oxenstjerna ( d. 1467 ), or capable administrators, such as Jacob Ulfsson Örnfot, who was distinguished as a prince of the Church, royal councillor, patron of art and learning, founder of the University of Upsala and an efficient helper in the introduction of printing into Sweden.

# REDIRECT Jöns Jacob Berzelius

# REDIRECT Jöns Jacob Berzelius

# REDIRECT Jöns Jacob Berzelius

# REDIRECT Jöns Jacob Berzelius

The concept of allotropy was originally proposed in 1841 by the Swedish scientist Baron Jöns Jakob Berzelius ( 1779 – 1848 ).

Jöns Jakob Berzelius identified boron as an element in 1824.

Davy was trying to isolate calcium ; when he heard that Swedish chemist Jöns Jakob Berzelius and Pontin prepared calcium amalgam by electrolyzing lime in mercury, he tried it himself.

" The phrase catalysed processes was coined by Jöns Jakob Berzelius in 1836 to describe reactions that are accelerated by substances that remain unchanged after the reaction.

In 1819, on the heels of the invention of the voltaic pile, Jöns Jakob Berzelius developed a theory of chemical combination stressing the electronegative and electropositive character of the combining atoms.

In 1823 Wöhler finished his study of medicine in Heidelberg at the laboratory of Leopold Gmelin, who arranged for him to work under Jöns Jakob Berzelius in Stockholm.

Nevertheless, it was the beginning of the end of one popular vitalist hypothesis, that of Jöns Jakob Berzelius that " organic " compounds could only be made by living things.

In 1842 the Swedish chemist Baron Jöns Jakob Berzelius proposed the term " halogen " – ἅλς ( háls ), " salt " or " sea ", and γεν-( gen -), from γίγνομαι ( gígnomai ), " come to be " – for the four elements ( fluorine, chlorine, bromine, and iodine ) that produce a sea-salt-like substance when they form a compound with a metal.

The chemical abbreviation for sodium was first published by Jöns Jakob Berzelius in his system of atomic symbols, and is a contraction of the element's new Latin name natrium, which refers to the Egyptian natron, a natural mineral salt primarily made of hydrated sodium carbonate.

Selenium ( Greek σελήνη selene meaning " Moon ") was discovered in 1817 by Jöns Jakob Berzelius, who noted the similarity of the new element to the previously-known tellurium ( named for the Earth ).

* August 7 – Jöns Jakob Berzelius, Swedish chemist ( b. 1779 )

* Proteins are discovered by Jöns Jakob Berzelius.

* August 20 – Jöns Jakob Berzelius, Swedish chemist ( d. 1848 )

In Stockholm, Arfwedson knew the chemist Jöns Jakob Berzelius and received access to his private laboratory, where he discovered the element lithium in 1817, during analysis of the mineral petalite.

He always objected to the chemical notation devised by Jöns Jakob Berzelius, although most thought that it was much simpler and more convenient than his own cumbersome system of circular symbols.

Jöns Jakob Berzelius, one of the early 19th century " fathers " of modern chemistry, though he rejected mystical explanations of vitalism, nevertheless argued that a regulative force must exist within living matter to maintain its functions.

The concept of vitalism in chemistry can be traced back to Jöns Jakob Berzelius who suggested that in the division of organic and inorganic that a mysterious vital force exists in organic compounds.

* August 11 – In Sweden, Regent Kettil Karlsson Vasa dies and is succeeded by Jöns Bengtsson Oxenstierna.

Archbishop of Sweden Jöns Bengtsson Oxenstierna and statesman Erik Axelsson Tott become co-regents of Sweden.

* December 15 – Jöns Bengtsson Oxenstierna, archbishop and Regent of Sweden ( b. 1417 )

* Erik Axelsson Tott replaces Jöns Bengtsson Oxenstierna as Regent of Sweden.