 The three p-orbitals are atomic orbitals with an angular momentum quantum number ℓ = 1.The cubic harmonic expression of the p-orbitals

with

The five d-orbitals are atomic orbitals with an angular momentum quantum number ℓ = 2.The angular part of the d-orbitals are often expressed like

The angular part of the d-orbitals are the cubic harmonics formula_23

with

The seven f-orbitals are atomic orbitals with an angular momentum quantum number ℓ = 3. often expressed like

The angular part of the f-orbitals are the cubic harmonics formula_31.