Assertion: uranium's number | /r/HasProperty | atomic
Facets:
Source sentences:
text: Uranium (U), radioactive chemical element of the actinoid series of the periodic table, atomic number 92.
text: the lower number preceding the atomic symbol is the atomic number or number of protons in the atom; the upper number is the atomic mass, which equals the number or protons plus the number of neutrons; and 01n represents a neutron):
text: Uranium on the periodic table of elements is the “U” symbol, or atomic number 92.