At the time of Heisenberg

At the time of Heisenberg - 'sarrivalin1920,...

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At the time of Heisenberg's arrival in 1920, Sommerfeld had already been engaged with  one central problem: how to explain the behavior of spectra emitted by atoms. Atoms  stimulated by energy would emit not an entire spectrum of radiation, but only specific  lines corresponding to certain frequencies that were characteristic of whatever element  the atom was. Moreover, x-ray spectroscopy posed two problems that had to be  resolved. First was the problem of the lines splitting into doublets and triplets of lines,  called multiplets. Second was the fact that these multiplets turned into a regular pattern  of lines when the atom was exposed to a magnetic field. This anomaly was known as  the Zeeman effect. Four weeks after Heisenberg's arrival, Sommerfeld invited him to take a look at the  Zeeman effect data. Within a year Heisenberg proposed his atomic core model, which 
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This note was uploaded on 12/26/2011 for the course HIST 101 taught by Professor Womer during the Fall '08 term at Texas State.

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