Assertion: plutonium's life | /r/HasProperty | 24,100 years
Facets:
Source sentences:
text: The half-life of plutonium-239 is 24,100 years.
text: Plutonium-239 is the most widely used isotope, and it undergoes alpha decay into uranium-235 with a half-life of 2.41 x 104 years (24,100 years).