and hence permits two possible values for the spin magnetic quantum number, 
or 
implying that the 
-component of the spin must be either 
or 
when measured along an arbitrarily chosen -axis. [P8.3]
is: the intrinsic angular momentum of an electron. [P8.3]
is described: by an electron spin quantum number and hence permits two possible values for the spin magnetic quantum number, or implying that the -component of the spin must be either or when measured along an arbitrarily chosen -axis. [P8.3]
creates: electron spin magnetism. [P4.2]
helps to account: for the magnetic properties of the electron and those of atoms that contain unpaired electrons. [P8.3]
Copyright 1997, The Open University