Assertion: thorium's isotope | /r/HasProperty | radioactive
Facets:
value: with being radium-226
type: OTHER
value: highly
type: DEGREE
Source sentences:
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: Total Isotopes 33 Total Isomers 3 Radioactive Isotopes 30 Stable Isotopes 0 X-Ray Energies Kα 93.37