Back بلوتونيوم-239 Arabic Плутоній-239 Byelorussian Plutoni 239 Catalan Plutonium-239 Czech Plutonium-239 Danish Plutonium-239 German Πλουτώνιο-239 Greek Plutonio-239 Spanish پلوتونیوم-۲۳۹ Persian Plutonium 239 French
 A 99.96% pure ring of plutonium | |
| General | |
|---|---|
| Symbol | 239Pu |
| Names | plutonium-239, 239Pu, Pu-239 |
| Protons (Z) | 94 |
| Neutrons (N) | 145 |
| Nuclide data | |
| Half-life (t1/2) | 24110 years |
| Isotope mass | 239.0521634 Da |
| Spin | +1⁄2 |
| Parent isotopes | 243Cm (α) 239Am (EC) 239Np (β−) |
| Decay products | 235U |
| Decay modes | |
| Decay mode | Decay energy (MeV) |
| Alpha decay | 5.156 |
| Isotopes of plutonium Complete table of nuclides | |
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.[1]
- ^ "Physical, Nuclear, and Chemical Properties of Plutonium". Institute for Energy and Environmental Research. Retrieved 20 November 2015.
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