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Topic: Jons Jacob Berzelius


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In the News (Fri 13 Nov 09)

  
  Berzelius, Jöns Jakob
Berzelius lost both his parents in his childhood but nevertheless received good secondary education in Linköping and was able to enrol in 1796 at the University of Uppsala to study medicine.
Berzelius preferred chemistry to medicine but had to first serve as regional physician near Stockholm before the wealthy mine-owner W. Hisinger provided him with laboratory facilities in Stockholm.
Berzelius was undoubtedly the leading chemical authority in Europe during the first half of the 19th century.
www.euchems.org /Distinguished/19thCentury/berzelius.asp   (416 words)

  
  Biography of Jons Jacob Berzelius - Biographyies List - BiograhpyFinder.com
Jons Jacob Berzelius (1779 - 1848) - chemist
Jons Jacob Berzelius (August 20, 1779 - August 7, 1848) was a Swedish chemist, who invented modern chemical notation and is considered one of the fathers of modern chemistry (along with John Dalton and Antoine Lavoisier).
Berzelius - his life and work was written by J. Erik Jorpes and published in 1966 and 1970 (originally in Swedish, first published in 1949).
www.biographyfinder.com /s2333-Jons-Jacob-biography.html   (327 words)

  
 Jöns Jacob Berzelius   (Site not responding. Last check: 2007-11-06)
Jöns Jacob Berzelius (August 20, 1779 - August 7, 1848) was a Swedish chemist, who invented modern chemical notation and is considered one of the fathers of modern chemistry (along with John Dalton and Antoine Lavoisier).
In discovering that the atomic weights were also not integer multiples of hydrogen's, Berzelius also disproved Prout's hypothesis that elements were built up from atoms of hydrogen.
In order to aid his experiments, he developed a system of chemical notation in which the elements were given simple written labels -- such as O for oxygen, or Fe for iron -- and proportions were noted with numbers.
www.abacci.com /wikipedia/topic.aspx?cur_title=Jons_Jacob_Berzelius   (355 words)

  
 Jöns Jacob Berzelius Biography | Encyclopedia of World Biography
The Swedish chemist Jöns Jacob Berzelius (1779-1848) was one of the first European scientists to accept John Dalton's atomic theory and to recognize the need for a new system of chemical symbols.
Jöns Jacob Berzelius, the son of a clergyman-schoolmaster, was born on Aug. 20, 1779, at Väversunda, Sweden.
Berzelius was the first to prove beyond a doubt the validity of Proust's law and having been impressed by Dalton's theory of atoms, he proceeded to determine atomic weights.
www.bookrags.com /biography/jons-jacob-berzelius   (1282 words)

  
 Jons Jakob Berzelius
Jöns Jakob Berzelius (1779–1848) was one of Humphry Davy's contemporaries and rivals.
Berzelius was born into a well-educated Swedish family, but he experienced a difficult childhood because first his father and then his mother died.
Berzelius also applied his organizing abilities to mineralogy, where he classified minerals by their chemical composition rather than by their crystalline type, as had previously been done.
www.chemheritage.org /classroom/chemach/electrochem/berzelius.html   (494 words)

  
 Berzelius, Jöns Jakob
Berzelius was born in Linköping, Sweden, in 1779.
Berzelius was so taken with experimental work, he bribed a caretaker in order to gain extra access to the university's laboratory.
In 1800 Berzelius was apprenticed to a physician at the Medivi mineral springs in Sweden.
www.chemistryexplained.com /Ar-Bo/Berzelius-J-ns-Jakob.html   (624 words)

  
 JONS JACOB BERZELIUS
I was impressed with him then and I hope that your chronicle of him will treat him with the dignity and respect which he deserves.
He moved from the hierachal duality of acids and salts proposed by Stahl and Lavoisier to his own duality which saw substances composed of the generic and specific and eventually to one of compounds being made up of positive and negative portions.
Berzelius Charicature- donated by William Jensen, University of Cincinnati, and may be used for educational purposes only.
www.woodrow.org /teachers/ci/1992/Berzelius.html   (1007 words)

  
 Assigned reading on Berzelius
Jons Jacob Berzelius was born at Vaversande, Ostergotland, in Sweden, in 1779.
Berzelius was greatly disenchanted with the inaccuracy and inadequacy of the methods of analysis in use in his day.
In his autobiography Berzelius notes, many times I had to repeat my analysis with different methods to find that method which was most certain to give the correct result', that is the result in accordance with the atomic theory.
iweb.tntech.edu /chem281-tf/Berzelius.htm   (2954 words)

  
 Highbeam Encyclopedia - Search Results for Berzelius,   (Site not responding. Last check: 2007-11-06)
Berzelius, Jöns Jakob, Baron (1779–1848) Swedish chemist, one of the founders of modern chemistry.
He studied under the German chemist Leopold Gmelin and J. Berzelius, a Swedish chemist, and in 1836 was appointed professor at the Univ. of Göttingen.
Jons Jacob Berzelius was the first to recognize and name it (1830).
www.encyclopedia.com /SearchResults.aspx?Q=Berzelius,   (714 words)

  
 Jons Jacob Berzelius   (Site not responding. Last check: 2007-11-06)
One of Sweden's most famous chemists, Berzelius was responsible (1813) for devising the modern symbols of the elements.
Jöns Berzelius on chemical symbols and formulas (1814).
The museum used to be located on the grounds of the Swedish Royal Academy of Science on the north side of Stockholm, Sweden.
webpub.alleg.edu /employee/g/grodgers/ScientificTravelingWebsite/Berzelius.html   (321 words)

  
 Jöns Jacob Berzelius Biography | World of Scientific Discovery
Berzelius was born in Väversunda, Sweden, on August 20, 1779.
Based upon the results of his research, Berzelius arrived at a theory of the composition of compounds, asserting that all compounds consist of both electrically positive atoms and electrically negative atoms.
Berzelius' dualistic or electrochemical theory became popular, especially in the field of mineralogy, but he was unsuccessful in adapting the theory to organic compounds, and the idea eventually fell out of favor with chemists.
www.bookrags.com /biography/jons-jacob-berzelius-wsd   (985 words)

  
 Jöns Jacob Berzelius - susning.nu   (Site not responding. Last check: 2007-11-06)
Jöns Jacob Berzelius spelade en central roll för kemins utveckling under 1800-talet.
Berzelius visade att detta stämde för över 2 000 ämnen och bidrog därigenoms starkt till att Daltons atomteori kom att accepteras.
Berzelius har parken Berzelii park i Stockholm uppkallad efter sig och i parken står han staty, rest efter en insamling av Vetenskapsakademiens ledamöter.
www.susning.nu /J%f6ns_Jacob_Berzelius   (244 words)

  
 Baker Group Chemical Lineage
Berzelius performed more than 2000 experiments over a ten-year period to determine accurate atomic masses for the 50 elements then known.
Berzelius made many other major contributions to chemistry, The most important of these was the invention of a simple set of symbols for the elements along with a system for writing the formulas of compounds to replace the awkward symbolic representations of the alchemists
The Marvel award is given annually by the ACS Division of Polymer Chemistry to honor excellence in polymer education.
www.cem.msu.edu /~bakerg/web_page/baker_lineage.html   (196 words)

  
 Jöns Jacob Berzelius
Trained as a medical doctor at the Uppsala University, in 1802 he became a teacher, from 1807 professor, in medicine and surgery at the Stockholm School of Surgery.
In 1810 the school became a part of Medico-Kirurgiska institutet, the predecessor to the Karolinska Institute, and Berzelius was appointed professor in chemistry and pharmacy.
Not long after arriving to Stockholm he wrote a chemistry textbook for his medical students, from which point a long and fruitful career in chemistry began.
www.xasa.com /wiki/en/wikipedia/j/jo/joens_jacob_berzelius.html   (370 words)

  
 silicon
Elemental silicon was prepared for the first time by Berzelius, in 1823, who placed silicon tetrafluoride in the presence of warm potassium.
Berzelius prepared silicon from the reaction of potassium fluorsilicates with potassium.
Amorphous silicon is a brown powder, and crystalline silicon is a gray color with a metallic luster.
www.carondelet.pvt.k12.ca.us /Family/Science/GroupIVA/silicon.htm   (665 words)

  
 Berzelius - Research the news about Berzelius - from HighBeam Research
Berzelius and Carl von Linne are the two most famous Swedish scientists of all time, and Berzelius is one of the most renowned chemists...
Cronstedt (nickel, 1751), Gahn (manganese, 1774), Berzelius (cerium, selenium and thorium), Arfvedson (lithium...
Jons Jakob Berzelius (1779-1848) Berzelius was born in Vaversunda Sorgard...
www.highbeam.com /search.aspx?q=Berzelius,&ref_id=ency_botnm   (852 words)

  
 Jöns Jacob Berzelius Biography | scit_0512345_package.xml
Descended from three generations of Lutheran clergy, Berzelius lost his father at age two and his mother at age nine and was raised by relatives.
While in France Berzelius was elected secretary of the Academy of Science in Stockholm, which doubled his salary and provided him with new laboratory facilities.
In 1832 Berzelius resigned his other university obligations to concentrate on this work, and upon his belated marriage in 1835 was made a baronet.
www.bookrags.com /biography-jns-jacob-berzelius-scit-0512345/index.html   (719 words)

  
 Amazon.fr : Enlightenment Science in the Romantic Era: The Chemistry of Berzelius and Its Cultural Setting: Livres en ...   (Site not responding. Last check: 2007-11-06)
Joseph Berzelius (1779-1848), one of the world's leading scientists in the first half of the nineteenth century, dominated the field of chemistry, animated the cultural life of his native Sweden, and served for three decades as secretary of the Royal Swedish Academy of Sciences.
This volume remedies the scarcity of accessible, modern assessments of Berzelius by bringing to a broad audience the results of recent scholarship, and it offers an enhanced assessment of his originality and influence.
Jons Jacob Berzelius - or Jacob Berzelius as he probably ought to be called - is one of the greatest names in Swedish science; only Carl von Linne can be compared with him. Lire la première page
www.amazon.fr /Enlightenment-Science-Romantic-Era-Chemistry/dp/0521417759   (384 words)

  
 Berzelius
By 1812 Berzelius had firmly established the Law of Multiple Proportions by analyzing a large number of examples and became a leading advocate for the atomic hypothesis.
Berzelius could not conceive of a way that identical elementary molecules could unite together.
Berzelius suggested that the capital initial letter of the Latin name for each element be should be used as its chemical symbol.
homepage.mac.com /dtrapp/periodic.f/berzelius.html   (456 words)

  
 Berzelius
Berzelius was born on August 20, 1779, and lost his father at the age of four.
In 1810 Berzelius at last achieved professional stability on the staff of the newly established Karolinska Institutet.
His dualistic theory of chemical combination was very influential, and though partly undermined by the rise of organic chemistry, it was to rule inorganic chemistry for close to a century.
www.bioanalytical.com /info/calendar/98/07berz.htm   (310 words)

  
 Michael Swanwick's Periodic Table of Science Fiction
Cerium was first identified in the winter of 1803/4 at Vesmanland, Sweden, by the geologist Wilhelm Hisinger and the chemist Jons Jacob Berzelius.
Hisinger brought Berzelius a mineral sample from his father's mines, and together they determined it to be the ore of a previously unknown element.
Statues were raised to Hilsinger and Berzelius in lands where not one person in five hundred could have located Sweden on a world map.
www.scifi.com /scifiction/elements/cerium.html   (395 words)

  
 History of the Origin of the Chemical Elements and Their Discoverers
Berzelius usually cited articles published in other journals, but he also reported on the work in his laboratory which had not yet been published.
It was discovered by the Swedish chemist Jons Jacob Berzelius in 1817, while trying to isolate tellurium in an impure sample.
Zirconium was first isolated by the Swedish chemist Jons Jacob Berzelius in 1824 in an impure state and finally by the chemists D. Lely Jr.
www.nndc.bnl.gov /content/elements.html   (11235 words)

  
 Allotropy
allos, other, and tropos, manner), a name applied by Jons Jacob Berzelius to the property possessed by certain substances of existing in different modifications; the various forms are known as allotropes.
Jones Jacob Berzelius' used the name in an entirely different sense (see Macmillan Encyclopedia of Chemistrty, edited by J.J.Lagowski, 1997, Simon Schuster)
Some classic examples of elements that have allotropes, are phosphorus (in "red" and "white" forms) and carbon (in the form of graphite, diamond, or fullerenes).
www.ebroadcast.com.au /lookup/encyclopedia/al/Allotrope.html   (381 words)

  
 L'Encyclopédie de L'Agora: Jöns Jacob Berzelius
On doit à Berzelius la découverte de plusieurs corps simples : le sélénium, le thorium, le cérium; il a préparé le premier à l’état métallique le silicium et le zirconium.
Berzelius a beaucoup écrit et ses ouvrages ont contribué puissamment à la vulgarisation de la chimie.
Tome 7 par J. Berzelius,...; traduction du suédois par Ph.
www.agora.qc.ca /mot.nsf/Dossiers/Jons_Jacob_Berzelius   (1241 words)

  
 MSU Chemistry - Genealogy Work Area - B   (Site not responding. Last check: 2007-11-06)
Berzelius embarked on a systematic program to try to make accurate and precise quantitative measurements and insure the purity of chemicals.
Berzelius developed the radical theory of chemical combination, which holds that reactions occur as stable groups of atoms called radicals are exchanged between molecules.
He believed that salts are compounds of an acid and bases, and discovered that the anions in acids would be attracted to a positive electrode, whereas the cations in a base would be attracted to a negative electrode.
www.chemistry.msu.edu /Genealogy/work-area-B.shtml   (2676 words)

  
 [No title]
Jons Jacob Berzelius, shown here as a student at Upsala University in 1799, was destined to become one of th most celebrated scientists of his era, and an honored member of almost every learned society in Europe.
The atomic weights used today are essentially his, as are the symbols for the elements and the way in which we write chemical formulas, and his love of words gave us the terms isomer, polymer, allotrope, and protein.
The aging Berzelius, his health severely compromised by a life amid toxic vapors in a nearly unventilated work space, persisted until the end, even as some of his most cherished theories were being demolished by a new generation of chemists.
www.brown.edu /Courses/UC14   (2861 words)

  
 protein   (Site not responding. Last check: 2007-11-06)
Proteins differ from carbohydrates chiefly in that they contain much nitrogen and a little bit of sulfur, besides carbon, oxygen and hydrogen.
Proteins are a primary constituent of living things and one of the chief classes of molecules studied in biochemistry and were discovered by Jons Jacob Berzelius, in 1838.
Proteins are amino acid chains that fold into unique 3-dimensional structures.
www.wapipedia.org /wikipedia/topic.aspx?cur_title=protein   (1762 words)

  
 Amazon.com: Berzelius: Books   (Site not responding. Last check: 2007-11-06)
Berzelius europaresenären: Bland forskare, prostar och poeter by Carl Gustaf Bernhard (Unknown Binding - 1993)
Jons Jacob Berzelius (HMW Jahrbuch 1959) by Otto Zekert (Hardcover - 1959)
Objections to the nomenclature of the celebrated Berzelius,: With suggestions respecting a substitute, in a letter to Professor Silliman: first published...
www.amazon.com /s?ie=UTF8&keywords=Berzelius&tag=benlopark&index=books&link_code=qs&page=1   (503 words)

  
 turkishdailnews.com - Watches - Jons Jacob Berzelius
NEW YORK -- Emission controls in petrochemical refining are common facts of life in the world today, enabling modern technologies and environmental sciences to flourish.
Jons J. Berzelius was born in 1779 in Sweden.
Jons Jacob Berzelius Daniel Bernoulli Niels Bohr Robert Boyle James Chadwick Jacques Charles Copernicus … Jons J. Berzelius was born in 1779 in Sweden.
www.turkishdailnews.com /watches/term869.html   (129 words)

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