Assertion: technetium's isotope | /r/HasProperty | tc
Facets:
Source sentences:
text: Its longest-lived isotope is Tc 98 with a half-life of 4,200,000 years.
text: -The most stable isotopes are Tc 97, 98, 99
text: Its longest-lived isotope is Tc 98 with a half-life of 4,200,000 years.