When [[Uranium|Uranium-235]] <math>{}^{235}U</math> is bombarded with neutrons, a nucleus may absorb a neutron <math>{}_0^1n</math> and become very unstable. It splits into fragments, generally two new smaller nuclei and a few neutrons. A typical reaction would be:
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When [[Uranium|Uranium-235]] <math>{}^{235}U</math> is bombarded with neutrons, a nucleus may absorb a neutron <math>{}_0^1n</math> and become very unstable. It splits into fragments, generally two new smaller nuclei and a few neutrons. A typical reaction<ref>[http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch23/fission.php Bodner Research Web:] Nuclear Fission and Nuclear Fusion</ref> would be: