The concept of the spin of an electron can be somewhat misleading when it comes to thinking about it as a spinning object in the classical sense. In quantum mechanics, the spin of a particle, such as an electron, is an intrinsic property that does not correspond to actual spinning motion.
The spin of an electron is a fundamental quantum property that is always present, and it is quantized, meaning it can only take specific values. In the case of an electron, its spin is always 1/2 in units of the reduced Planck constant ħ. This intrinsic spin gives rise to certain magnetic properties and affects the behavior of electrons in various quantum systems.
Since the spin of an electron is not a result of physical rotation, it does not "stop" like a spinning object would. The spin of an electron remains constant and fixed at the value of 1/2 throughout its existence. It is an inherent property that is conserved and does not change unless acted upon by external factors, such as interactions with other particles or fields.
In summary, the spin of an electron is an intrinsic property that remains constant and does not stop. It is a fundamental quantum property that characterizes the behavior of electrons and is not related to classical spinning motion.