Assertion: seaborgium's isotope | /r/HasProperty | radioactive
Facets:
value: extremely
type: DEGREE
Source sentences:
text: All known isotopes of bohrium are extremely radioactive; the most stable known isotope is 270Bh with a half-life of approximately 61 seconds, though the unconfirmed 278Bh may have a longer half-life of about 690 seconds.
text: All known isotopes of curium are radioactive and have a small critical mass for a sustained nuclear chain reaction.
text: Technetium, with atomic number (denoted Z) 43, is the lowest-numbered element in the periodic table for which all isotopes are radioactive.