Wolfgang+Pauli

Wolfgang Pauli was born on April 25th 1900 in Vienna Austria-Hungry. While growing up his parents noticed how well Pauli did in the subjects of math and physics. They hired him a tutor which made him submit three original papers on the theory of relativity to a leading physics periodical. All three of these papers were published by the time Pauli was twenty years old.

After receiving his doctorate in 1921 for theoretical work on the hydrogen molecule ion he became an assistant to Max Born of Göttingen. Working with Born made Pauli question the model of atomic structor that he used. Born used the exclusion principal. This means each electron has a unique set of quantum numbers.

Pauli tweaked this theory into an idea that uses three quantum numbers (n, k1, and k2) to divide electrons of an atom into electronic shells. The inner quantum (k2) was the is the added one and was made so that twice the sum of the individual k2 numbers become the number of electrons in a subgroup.

Pauli also added a fourth quantum number (m1) which only had 2 values of 1/2 and -1/2.

This first statement of his exclusion principal was that there cant be two or more equivalent electrons in an atom for which the values of all quantum numbers n, k1, k2, and m1 are the same.

This solved many problems in the interpretation of observed atomic spectra, because it prevented many lines that should be seen but never were to be forbidden.

Pauli became professor of theoretical physics at the Federal Institute of Technology in Zurich in 1928. Mainly because of his efforts it became a leading center for research in theoretical theories. In 1931 Pauli discovered that when an electron was was taken from a nucleus, a loss of energy occurred that couldn't be explained by the current theories. After working at the institute of Advanced STudies at Princeton in New Jersey druing World War 2, Pauli returned to Zurich and died in 1958.

http://www.chemistryexplained.com/Ny-Pi/Pauli-Wolfgang.html

www.twitter.com www.soundclud.com/eatdatcake