Electron spin of 1/2

Electron Spin

Spin "up" and "down" allows two electrons for each set of spatial quantum numbers.

An electron spin s = 1/2 is an intrinsic property ofelectrons. Electrons have intrinsic angular momentumcharacterized by quantum number 1/2. In the pattern of other quantized angular momenta, this gives total angular momentum The resulting fine structure which is observed corresponds to two possibilities for the z-component of the angular momentum.This causes an energy splitting because of the magnetic moment of the electron