In 1920, he went to the Ludwig Maximilian University of Munich (LMU) to study under Arnold Sommerfeld. Wentzel was awarded his doctorate in 1921 and completed his Habilitation in 1922.
In 1920, Wentzel enrolled at the Ludwig Maximilian University of Munich (LMU) to study with Arnold Sommerfeld. In 1921, he received his doctorate, and in 1922, he completed his Habilitation.