• For the n = 3 shell, l = 0, 1 and 2. These are labelled as '3s', '3p and '3d' subshells respectively.
  • For the l = 0 subshell, ml = 0 only. This is the 3s orbital:
  • For the l = 1 subshell, ml = -1, 0, +1. There are three 3p orbitals:.
  • For the l = 2 subshell, ml = -2, -1, 0, +1 and +2. There are five 3d orbitals:.