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Glossary Atomic Weapons / Term

Fission

The process whereby the nucleus of a particular heavy element splits into (generally) two nuclei of lighter elements, with the release of substantial amounts of energy. The most important fissionable materials are uranium-235 and plutonium-239; fission is caused by the absorption of neutrons.

See Fission Bomb, Nucleus.

Permanent link Fission - Creation date 2020-04-26


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