Assertion: uranium | /r/HasProperty | u
Facets:
Source sentences:
text: Uranium (U), radioactive chemical element of the actinoid series of the periodic table, atomic number 92.
text: Uranium (U), although very dense (19.1 grams per cubic centimetre), is a relatively weak, nonrefractory metal.
text: Uranium (U) is soluble in acids, for example nitric acid.