Assertion: uranium's isotope | /r/HasProperty | 0,000 002 044 u.a
Facets:
Source sentences:
text: Uranium 238 is a natural isotope of uranium, non-fissionable with thermal neutrons, with an atomic mass of 238,050 788 247 Â± 0,000 002 044 u.a. and a half life of 4,468 x 109 years, atomic number 92.