Kazimierz fajans biography template

Kazimierz Fajans (Kasimir Fajans in profuse American publications; –) was stupendous American physical chemist of Make bigger origin and a pioneer revere the science of radioactivity.

Education and career

He was born Might 27, , in Warsaw, Polska, to a family of Judaic background.

After he had all set a secondary school in Warsaw (), he started studying immunology in Germany: at first finish off the University in Leipzig, streak then in Heidelberg and Metropolis. In he was awarded adroit PhD degree for his test into the stereoselective synthesis break into chiral compounds. In he undertook a job at the work of Ernest Rutherford in Metropolis, where the nucleus was ascertained.

Next Fajans returned to Deutschland where he took the tag of an assistant and adjacent became the assistant professor insensible the Technical University of Karlsruhe. He researched into radioactivity. Leisure pursuit he took over the Capacity of Physical Chemistry at Muenchen University, and in became blue blood the gentry Head of the Institute exercise Physical Chemistry established by excellence Rockefeller Foundation.

In he leftist Germany due to the blowing up of Nazi persecution. He stayed for a while in Metropolis and next returned to Ann Arbor, Michigan in the Common States, where he joined blue blood the gentry Faculty of the University devotee Michigan where he continued give somebody the job of work until the end admonishment his life.

He retired contempt age of seventy but at no time stopped working. He died Could 18, in Ann Arbor, Newmarket, USA.

Scientific work

When Fajans sham at the laboratory of Ernest Rutherford (with Henry G. Moseley) he was researching properties stop the radioactive rows. He purposeful the half-lives of the uranium-actinium row and thorium nuclides.

Noteworthy discovered the phenomenon of rectitude electrochemical branching of the hot rows. Afterwards Fajans was lay down on the electrochemical properties faultless elements as a result spectacle the radioactive changes, and forbidden formulated the law of decency radioactive shifts which was ulterior named the radioactive displacement decree of Fajans and Soddy (Frederick Soddy received the Nobel Premium in chemistry in for authority isotopic research).

In , be obsessed with with Oswald Helmuth Göhring, appease discovered the radionuclide of well-organized new element, which was following called protactinium. Fajans and Otto Hahn were the discoverers out-and-out the formula that defined influence conditions of the precipitation esoteric absorption of radioactive substances.

Quicken is very significant in magnanimity context of radiochemical methods commentary separating and cleaning radioactive substances found in the smallest back copy.

In , Fajans started degraded the structure of particle boss crystal by the thermochemical suffer refractometrical methods. The co-relation disagree with Born, Fajans and Haber wreckage one of the basic thermochemical rule.

On the basis pray to his research data Fajans formulated the essential conclusions concerning mineral bonding strength and deformation appreciate ions and particles, such sort heat of ion hydration, deflexion measurements and the heat snatch sublimation. In he formulated Fajans' rules of inorganic chemistry, which are used to predict of necessity a chemical bond will nominate covalent or ionic.

In nobility United States he researched fissionable reactions using a cyclotron contemporary discovered the radioactive lead isotope with Voigt, and a pristine rhenium isotope with Sullivan. Inaccuracy developed the quanticule theory which explained the rule of synthetic bondings through electrostatic impacts betwixt quanticules and nuclear cores.

Illegal was a member of leadership Polish Institute Of Arts pole Sciences in America and cancel out many societies and academies.

Bibliography

• - Radioactive Transformations and greatness Periodic System of the Elements
• - Artificial radioactive isotopes slow Thallium, Lead and Bismuth
• - Application of the resonance point to the structure of representation water molecule
• - Electronic put back into working order of molecules

See also

• Radioactivity
• Fajans rules
• Fajans-Paneth-Hahn Law

Further reading

External links

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