Can anyone explain this to me? It piqued my interest, especially since I nominally work with radioactive materials (though admittedly, not fissile material) and didn't know where this came from.(adsbygoogle = window.adsbygoogle || []).push({});

"It is not a coincidence, for example, that the three nuclei which are fissionable with slow neutrons, U233, U235, and Pu239, all contain an even number of protons and an odd number of neutrons."

- Shanks,Solved and Unsolved Problems in Number Theory(5th ed.), p. 137

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# Parity of nucleons and fission

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