quantum numbers:
-
principle quantum number (
)
gives information about the main energy level -
orbital angular momentum quantum number (
)
gives information about the subshell the electron inhabits -
magnetic quantum number (
)
gives information about which orbital in the subshell the electron is in -
spin projection number (
) -
see quantum spin
electrons have to have spin as they are fermions (which also have to have half-integer spins)
the consequence of spin is that electrons have magnetic moments and thus charge