<Li> The magnetic quantum number (m) describes the specific orbital (or "cloud") within that subshell, and yields the projection of the orbital angular momentum along a specified axis: <Dl> <Dd> L = m ħ . </Dd> </Dl> <P> The values of m range from − l to l, with integer steps between them: </P> The s subshell (l = 0) contains only one orbital, and therefore the m of an electron in an s orbital will always be 0 . The p subshell (l = 1) contains three orbitals (in some systems, depicted as three "dumbbell - shaped" clouds), so the m of an electron in ap orbital will be − 1, 0, or 1 . The d subshell (l = 2) contains five orbitals, with m values of − 2, − 1, 0, 1, and 2 . </Li> <Dl> <Dd> L = m ħ . </Dd> </Dl> <Dd> L = m ħ . </Dd> <P> The values of m range from − l to l, with integer steps between them: </P>

The azimuthal quantum number for the outermost electrons in a nitrogen atom