Assertion: deuterium's nucleus | /r/MadeOf | just 1 proton
Facets:
Source sentences:
text: This means the central core or nucleus of any of the three varieties of hydrogen contains just 1 proton.
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.