Assertion: hydrogen's isotope | /r/HasAspect | neutron
Facets:
value: in its nucleus
type: LOCATION
Source sentences:
text: The most common isotope of hydrogen, termed protium (name rarely used, symbol 1H), has one proton and no neutrons.
text: (However, an isotope of hydrogen, called deuterium, contains one protron and one neutron, and another, known as tritium, has one proton and two neutrons.)
text: The most abundant form, or isotope, of hydrogen has no neutrons in its nucleus; the atom consists very simply of a single proton, orbited by a single electron.