Displacement theorem from Kossel-Sommerfeld

The shifting set of Sommerfeld and Kossel , named after Arnold Sommerfeld and Walther Kossel , describes spectra of hydrogen-like atoms. This leads to similar energy levels between successive single positively charged atoms . Sommerfeld and Kossel formulated this as follows:

“The spectrum of any atom is very similar to the spectrum of the simple pos. charged atom that follows in the periodic table . "

Example:

So there are roughly the same energy levels of approx. 13.6  eV for hydrogen with a principal quantum number , for He ⁺ with and Li ²⁺ with . ${\displaystyle (n)=1}$ ${\displaystyle n=2}$ ${\displaystyle n=3}$

Individual evidence

1. ↑ Wolf Haken: Atom and Quantum Physics. 8th edition. Springer-Verlag, Berlin / Heidelberg / New York 2004, ISBN 3-540-02621-5 , p. 113 ( limited preview in the Google book search).