Assertion: argon | /r/HasProperty | stable
Facets:
Source sentences:
text: No, argon (Ar) is stable, inert and unreactive.
text: It is a noble gas whose most commonly occurring isotope, 36 Ar, is stable and does not decay as the Argon Crystal does (though it has a number of unstable isotopes that do decay, none of their half-lives match up with the Argon Crystal's rate of decay).
text: Argon is a Noble gas and is stable.