Plutonium-239
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Plutonium-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
The first sample of plutonium in which nuclear fission was detected, pictured above, was a sample of plutonium-239.
Uranium-238
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Uranium-238 is the most common isotope of uranium found in nature, with a relative abundance above 99%. Unlike uranium-235, it is non-fissile, which means it cannot sustain a chain reaction in a therm
Plutonium-239
…207.1 MeV = 3.318 × 10−11 J, i.e. 19.98 TJ/mol = 83.61 TJ/kg, or about 23 gigawatt hours/kg. Plutonium is made from the most abundant uranium isotope uranium-238. 239Pu is normally created in nuclear reactors by transmutation of individual atoms of 238U present in the fuel rods. Occasionally, when an atom of…
10-gram sample