Assertion: neutron | /r/CapableOf | prevent any nuclides
Facets:
value: from existing for long enough
type: TEMPORAL
Source sentences:
text: For example, the extreme stability of helium-4 due to a double pairing of 2 protons and 2 neutrons prevents any nuclides containing five or eight nucleons from existing for long enough to serve as platforms for the buildup of heavier elements via nuclear fusion in Big Bang nucleosynthesis; only in stars is there enough time for this (see triple alpha process).
text: The extreme stability of helium-4 due to a double pairing of 2 protons and 2 neutrons prevents any nuclides containing five (5