Assertion: polonium's radioactivity | /r/HasProperty | proportional
Facets:
value: inversely
type: DEGREE
value: to the material
type: OTHER
Source sentences:
text: The radioactivity of a material is inversely proportional to the material
text: The radioactivity of a material is inversely proportional to the material's half-life (if something has a long half-life, the amount of radiation it releases per second is lower).
text: The radioactivity of a material is inversely proportional to the material