Electron Spin
Electron spin is an intrinsic, fundamental property of an electron, similar to its charge and mass. It is a form of angular momentum that is not due to the electron's movement through space, but is a fundamental characteristic of the particle itself.
Electron spin is a intrinsic property of electrons, which can be thought of as the electron rotating around its own axis.
It is quantized, meaning it can only take on specific discrete values.
The spin of an electron is measured in units of the reduced Planck constant (ℏ) and is denoted by the symbol s.
Electrons can have a spin of +1/2 or -1/2, which is often referred to as "up" or "down" spin.