Physicists originally expected that quarks carry all of the nucleon spin. The masses of the quarks are actually only about 1% that of a nucleon. Feynman attempted an explanation, called the parton model, of the strong interactions governing nucleon scattering. The Skyrme Lagrangian is essentially a one-parameter model of the nucleon. Nickel-62 has the highest binding energy per nucleon of any isotope. His doctoral thesis was about angular distribution in nucleon reactions. The LHC has operated with 25 times higher energies per nucleon. They are sometimes viewed as two different quantum states of the same particle, the "nucleon". Another example is the "nucleon particle". These elements have relatively small mass per nucleon and large binding energy per nucleon. The binding energy per nucleon increases with mass number up to nickel-62. It has relatively small binding energy per nucleon. The coupling to the nucleon would be the same as the coupling to the kaons. It gives the normalization of the weak interaction matrix elements for the nucleon. Effectively, it is a very large nucleon.