Assertion: neutron | /r/HasProperty | quantum mechanical system
Facets:
value: according to the nuclear shell model
type: OTHER
Source sentences:
text: According to the nuclear shell model, the protons and neutrons of a nuclide are a quantum mechanical system organized into discrete energy levels with unique quantum numbers.
text: In particular, Heisenberg assumed the neutron was a proton–electron composite, for which there is no quantum mechanical explanation.