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In nuclear physics, a nuclear chain reaction occurs when one single nuclear reaction causes an average of one or more subsequent nuclear reactions, thus leading to the possibility of a self-propagating series or "positive feedback loop" of these reactions.
A nuclear chain reaction occurs when the output of one nuclear reaction causes more nuclear reactions to occur. These chain reactions are almost always a series of fission events, which give off excess neutrons .
What is a chain reaction? Let's start at the beginning. The primary active ingredient in the fuel for a nuclear reactor is a particular variety, or "isotope," of uranium, called U235. U235 is relatively rare — only about 0.7% of uranium as it exists in nature is U235.
A nuclear fission chain reaction is a self-propagating sequence of fission reactions in which neutrons released in fission produce additional fission in at least one other nucleus. The chain reaction can take place only in the proper multiplication environment and only under proper conditions.
Nuclear chain reactions are series of nuclear fissions (splitting of atomic nuclei), each initiated by a neutron produced in a preceding fission. For example, 2 1/2 neutrons on the average are released by the fission of each uranium-235 nucleus that absorbs a low-energy neutron.
How do we use chain reactions in nuclear power reactors to generate electricity? Wouldn't they just explore just like an atomic bomb? So what's the big difference?
Mar 19, 2018 · A nuclear chain reaction is a fission reaction that releases extra neutrons. The neutrons split additional atoms releasing even more neutrons. As the number of neutrons emitted and the number of atoms split rises exponentially, a nuclear explosion can result.
