Hermanspahn's performing of this action on electrons in carbon-12 five plus ions in a Penning-trap used microwaves to excite 
Hermanspahn's performing of this action on electrons in carbon-12 five plus ions in a Penning-trap used microwaves to excite the electrons at their Larmor frequency. Another non-destructive version of this procedure was carried out by Dehmelt to observe the electron g-2 factor. This setup is difficult to achieve with some charged particles because the Lorentz force on the particles is greater is than the effect to be observed causing a blurring of trajectories. The results of this setup show an even number of lines such as the two observed in the first running of this experiment. In this experiment, an inhomogeneous magnetic field was created and a collimated beam of silver atoms was sent through the field. For 10 points, name this experiment that showed that electrons have spatially quantized angular momentum.
Hermanspahn's performing of this action on electrons in carbon-12 five plus ions in a Penning-trap used microwaves to excite the electrons at their Larmor frequency.
Stern-Gerlach experiment