Assertion: polonium's radioactivity | /r/HasProperty | the term given to the
Facets:
Source sentences:
text: Radioactivity is the (term given to the) emission of certain particles or electromagnetic waves caused by the breakdown of nuclei in atoms.
text: Radioactivity is the (term given to the) emission of certain particles or electromagnetic waves caused by the breakdown of nuclei in atoms.
text: Radioactivity is the (term given to the) emission of certain particles or electromagnetic waves caused by the breakdown of nuclei in atoms.