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Nuclear Fission Animation
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In nuclear fission, a heavy atomic nucleus, such as that of uranium or plutonium, will break up into two lighter nuclei. In the fission process, a large quantity of energy is released, radioactive products are formed, and several neutrons are emitted.
The released neutrons can also induce fission in a nearby nucleus of fissionable material and release more neutrons that can repeat the sequence, causing a chain reaction.
