Assertion: protactinium's isotope | /r/HasAspect | a half life of 32,500 years
Facets:
Source sentences:
text: This isotope had a half life of 32,500 years.
text: The most stable isotope of protactinium has a half-life of 32,500 years.
text: This isotope had a half life of 32,500 years.
text: This isotope had a half life of 32,500 years.
text: ; its most long-lived isotope, 231Pa, has a half-life of 32,500 years.