Plutonium-239 (239Pu or Pu-239) is an isotope of plutonium. Plutonium-239 is the primary fissile isotope used for the production of nuclear weapons, although uranium-235 is also used for that purpose. Plutonium-239 is also one of the three main isotopes demonstrated usable as fuel in thermal spectrum nuclear reactors, along with uranium-235 and uranium-233. Plutonium-239 has a half-life of 24,110 years.
|Half-life (t1/2)||24110 years|
|Isotope mass||239.0521634 Da|
|Parent isotopes||243Cm (α)|
|Decay mode||Decay energy (MeV)|
|Isotopes of plutonium |
Complete table of nuclides