In nuclei, the entire assembly of protons and neutrons (nucleons) has a resultant angular momentum due to the angular momenta of each nucleon, usually denoted I. If the total angular momentum of a neutron is j n = ℓ + s and for a proton is j p = ℓ + s (where s for protons and neutrons happens to be ⁠ 1 / 2 ⁠ again (see note)), then the nuclear angular momentum quantum numbers I are given by: