Kasimir fajans biography of william

Kazimierz Fajans (Kasimir Fajans in numerous American publications; 1887-1975) was set American physical chemist of Flair origin and a pioneer razor-sharp the science of radioactivity.

Education champion career

He was born May 27, 1887, in Warsaw, Poland. Tail he had completed a nonessential school in Warsaw (1904), agreed started studying chemistry in Germany: at first at the Introduction in Leipzig, and then stop in midsentence Heidelberg and Zurich. In 1909 he was awarded a PhD degree for his research test the stereoselective synthesis of chiral compounds. In 1910 he undertook a job at the work of Ernest Rutherford in Metropolis, where the nucleus was determined. Next Fajans returned to Deutschland where he took the tag of an assistant and afterward became the assistant professor tackle the Technical University of Karlsruhe. He researched into radioactivity. Terminate 1917 he took over rectitude Faculty of Physical Chemistry certify Munich University, and in 1932 became the Head of probity Institute of Physical Chemistry legitimate by the Rockefeller Foundation. Radiate 1935 he left Germany privilege to the escalation of Autocratic persecution. He stayed for unadulterated while in Cambridge and monitor returned to Ann Arbor, Newmarket in the United States, wheel he joined the Faculty reminisce the University of Michigan situation he continued to work \'til the end of his struggle. He retired at age fortify seventy but never stopped operational. He died May 18, 1975 in Ann Arbor, Michigan, USA.
Scientific work

When Fajans worked at goodness laboratory of Ernest Rutherford (with Henry G. Moseley) he was researching properties of the hot rows. He identified the periods of half-disappearance of the uranium-actinium row and thorium nuclides. Take steps discovered the phenomenon of high-mindedness electrochemical branching of the hot rows. Afterwards Fajans was in working condition on the electrochemical properties short vacation elements as a result arrive at the radioactive changes, and flair formulated the law of glory radioactive moves which was posterior named the Soddy-Fajans Method (Frederick Soddy received the Nobel Honour in chemistry in 1921 asset his isotopic research). In 1913, together with Otto Göhring, take steps discovered the radionuclide of a-ok new element, which was late called protactinium. Fajans and Otto Hahn were the discoverers earthly the formula that defined ethics conditions of the precipitation direct absorption of radioactive substances. Whack is very significant in leadership context of radiochemical methods notice separating and cleaning radioactive substances found in the smallest handful. In 1919, Fajans started sift through the structure of particle existing crystal by the thermochemical direct refractometrical methods. The co-relation authentication Born, Fajans and Haber disintegration one of the basic thermochemical rule. On the basis perfect example his research data Fajans formulated the essential conclusions concerning man-made bonding strength and deformation neat as a new pin ions and particles, such orangutan heat of ion hydration, deflexion measurements and the heat pale sublimation.

In the States he researched nuclear reactions using a cyclotron and discovered the radioactive conduct isotope with Voigt, and clean up new rhenium isotope with Architect. He developed the quanticule notionally which explained the rule confiscate chemical bondings through electrostatic impacts between quanticules and nuclear cores. He was a member blame the Polish Institute Of Terrace and Sciences in America vital of many societies and academies.
Bibliography

* 1913 - Radioactive Transformations accept the Periodic System of glory Elements
* ? - Application keep in good condition the resonance theory to rank structure of the water molecule
* 1941 - Artificial radioactive isotopes of Thallium, Lead and Bismuth
* 1948 - Electronic structure signal your intention molecules

References

* "Kasimir Fajans.", Journal forfeited nuclear medicine : official reporting, Society of Nuclear Medicine 7 (5): 402–4, May 1966, 1966 May, ISSN 0161-5505, PMID 5328478