安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
|
- Nuclear fission - Wikipedia
Nuclear fission is a reaction in which the nucleus of an atom splits into two or more smaller nuclei The fission process often produces gamma photons, and releases a very large amount of energy even by the energetic standards of radioactive decay
- Nuclear fission | Examples Process | Britannica
Nuclear fission, subdivision of a heavy atomic nucleus, such as that of uranium or plutonium, into two fragments of roughly equal mass The process is accompanied by the release of a large amount of energy
- Discovery of nuclear fission - Wikipedia
Fission is a nuclear reaction or radioactive decay process in which the nucleus of an atom splits into two or more smaller, lighter nuclei and often other particles The fission process often produces gamma rays and releases a very large amount of energy, even by the energetic standards of radioactive decay
- Spontaneous fission - Wikipedia
Spontaneous fission (SF) is a form of radioactive decay in which a heavy atomic nucleus splits into two or more lighter nuclei In contrast to induced fission, there is no inciting particle to trigger the decay; it is a purely probabilistic process
- Natural nuclear fission reactor - Wikipedia
A natural nuclear fission reactor is a uranium deposit where self-sustaining nuclear chain reactions occur The idea of a nuclear reactor existing in situ within an ore body moderated by groundwater was briefly explored by Paul Kuroda in 1956 [1]
- Nuclear fission - Simple English Wikipedia, the free encyclopedia
It is when an atom splits apart into smaller atoms Some fission reactions give off a lot of energy, and are used in nuclear weapons and nuclear reactors Nuclear fission was discovered in December 1938 by physicists Lise Meitner and Otto Frisch, who observed a uranium nucleus splitting in two
- Nuclear weapon - Wikipedia
A nuclear weapon [a] is an explosive device that derives its destructive force from nuclear reactions, either fission (fission or atomic bomb) or a combination of fission and fusion reactions (thermonuclear weapon [b]), producing a nuclear explosion
- DOE Explains. . . Nuclear Fission | Department of Energy
Nuclear fission is the process where the nucleus of an atom splits into two or more smaller nuclei and other particles These particles can include neutrons, alpha particles (helium nuclei), beta particles (electrons), and gamma rays (which consist of particles of light, or photons)
|
|
|