Category:Nuclear fission

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English: In nuclear physics and nuclear chemistry, nuclear fission is a nuclear reaction in which the nucleus of an atom splits into smaller parts (lighter nuclei), often producing free neutrons and photons (in the form of gamma rays), and releasing a tremendous amount of energy. The two nuclei produced are most often of comparable but slightly different sizes, typically with a mass ratio of products of about 3 to 2, for common fissile isotopes. Most fissions are binary fissions, but occasionally (2 to 4 times per 1000 events), three positively charged fragments are produced in a ternary fission. The smallest of these ranges in size from a proton to an argon nucleus.
nuclear fission 
nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into smaller parts
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Instance of nuclear reaction
Subclass of split
Facet of nuclear physics
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Time of discovery or invention
  • December 1938
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Media in category "Nuclear fission"

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