Science
Which quantum number describes electron spin values?
- Plus or minus one half
- Zero or one
- Any integer
The answer is Plus or minus one half. Spin one-half, up or down.
In chemistry and quantum mechanics, the spin quantum number is a quantum number that describes the intrinsic angular momentum of an electron or other particle. It has the same value for all particles of the same type, such as s = 1/2 for all electrons. It is an integer for all bosons, such as photons, and a half-odd-integer for all fermions, such as electrons and protons.
Wikipedia · Spin quantum number