xenon-135
chemical isotope
Quick Summary
Xenon-135 is a chemical isotope of xenon, a noble gas. It is a radioactive isotope with a half-life of 9.2 hours. Xenon-135 is produced by the fission of uranium in nuclear reactors.1
In nuclear physics, xenon-135 is considered a "poison" because it readily absorbs neutrons without undergoing nuclear fission. This property makes it troublesome in nuclear reactors, as it can lower the rate of fission by acting as a parasitic neutron absorber.2
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