Assertion: polonium | /r/HasProperty | 84 po
Facets:
Source sentences:
text: Polonium ( 84 Po) has 42 isotopes, all of which are radioactive, with between 186 and 227 nucleons.
text: Polonium ( 84 Po) has 42 isotopes, all of which are radioactive, with between 186 and 227 nucleons.