Assertion: uranium's nucleus | /r/MadeOf | 92 protons
Facets:
Source sentences:
text: The nucleus of the U-235 atom contains 92 protons and 143 neutrons, giving an atomic mass of 235 units.
text: Uranium in nature exists in several isotopic forms, such that the nucleus of the uranium atom contains 92 protons, but a variable number of neutrons, which together add up to the atomic mass.