Assertion: radon | /r/HasProperty | one of the densest substances
Facets:
value: as a gas
type: OTHER
Source sentences:
text: Radon is one of the densest substances that will remain a gas under normal conditions.
text: Is Radon so dense as a gas that a solid (like a piece of wood) would actually float in it?
text: Radon is one of the densest gases at room temperature and is the densest of the noble gases.
text: Radon is one of the densest substances that remains a gas under normal conditions.
text: Radon is one of the densest substances that remains a gas under normal conditions.