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Definition of «fission»

Fission is a nuclear reaction in which an atomic nucleus splits into two or more smaller nuclei, along with the release of a large amount of energy. This process often occurs when a heavy atom, such as uranium-235 or plutonium-239, absorbs a neutron and becomes unstable. The resulting instability causes the nucleus to split into two smaller nuclei, releasing more neutrons and additional energy in the form of heat and radiation. This process is used in nuclear power plants to generate electricity, as well as in atomic bombs.

Usage examples

  1. Nuclear fission is the process in which the nucleus of an atom splits into two or more smaller nuclei, releasing a large amount of energy.
  2. The splitting of uranium-235 or plutonium-239 atoms in a nuclear reactor is an example of fission.
  3. Controlled fission of heavy atomic nuclei is the basis for generating electricity in nuclear power plants.
  4. The chain reaction that occurs during fission reactions can be used to produce nuclear weapons.
  5. Fission is also involved in the process of radioactive decay, where unstable atomic nuclei split to become more stable.

Phrases with «fission»

Sentences with «fission»

  • In our researchers» case, the generation of energy is observed from nuclear fission of Uranium - 235 (U-235). (sciencedaily.com)
  • This is especially important for formulating fusion and new kinds of fission nuclear power plants. (sciencedaily.com)
  • I - 129 does have significant value as a tracer of movement of fission products through the environment and the biosphere, since any of it you find was created in the last 60 years and the quantity is essentially unchanged in that time. (realclimate.org)
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See also

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