Assertion: hydrogen's nucleus | /r/CapableOf | call triton
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: The nucleus of tritium (sometimes called a triton) contains one proton and two neutrons, whereas the nucleus of the common isotope hydrogen-1 (protium) contains just one proton, and that of hydrogen-2 (deuterium) contains one proton and one neutron.