Assertion: actinium's isotope | /r/HasProperty | radioactive
Facets:
value: highly
type: DEGREE
value: with being radium-226
type: OTHER
Source sentences:
text: All 36 known isotopes of actinium are radioactive.
text: All isotopes of radium are highly radioactive, with the most stable isotope being radium-226, which has a half-life of 1600 years and decays into radon gas (specifically the isotope radon-222).
text: Naturally occurring actinium is composed of two radioactive isotopes;
text: Naturally occurring actinium is composed of 1 radioactive isotope; with 227-Ac being the most abundant (100% natural abundance).
text: Naturally occurring actinium is composed of two radioactive isotopes;
text: Naturally occurring actinium is composed of 1 radioactive isotope; with 227-Ac being the most abundant (100% natural abundance).
text: Naturally occurring actinium is composed of 1 radioactive isotope;