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Nuclear fission is a physical process in which the nucleus of a fissile atom (such as Uranium-235 (U-235)) absorbs a free neutron and becomes unstable. The nucleus then splits into two smaller nuclei, releasing a large amount of energy, additional neutrons, and various byproducts. | Nuclear fission is a physical process in which the nucleus of a fissile atom (such as Uranium-235 (U-235)) absorbs a free neutron and becomes unstable. The nucleus then splits into two smaller nuclei, releasing a large amount of energy, additional neutrons, and various byproducts. | ||
The released neutrons can go on to trigger further fission events, allowing a chain reaction to develop. | The released neutrons can go on to trigger further fission events, allowing a chain reaction to develop.<ref name=":0">{{Citation|year=1978|chapter=Nuclear Fission|chapter-url=https://encyclopedia2.thefreedictionary.com/nuclear+fission|title=[[Great Soviet Encyclopedia]] (3rd ed.)|volume=30|page=452-454|city=Moscow|pdf=https://ia804601.us.archive.org/2/items/B-001-032-507-748-ALL/БСЭ_3изд_т30_742.pdf|trans-title=Boljšaja sovjetskaja enciklopjedija|trans-lang=Russian}}</ref><ref name=":1">{{Web citation|newspaper=[[Baidu Baike]]|title=核裂变|date=|url=https://baike.baidu.com/item/核裂变|archive-url=https://archive.today/|archive-date=2025-12-12}}</ref> | ||
Nuclear fission is the process used in nuclear reactors to generate electricity in a controlled manner. | Nuclear fission is the process used in nuclear reactors to generate electricity in a controlled manner. | ||
It is also the physical principle behind the explosive energy release in atomic bombs, where the reaction occurs in an uncontrolled form. | It is also the physical principle behind the explosive energy release in atomic bombs, where the reaction occurs in an uncontrolled form. | ||
==References== | |||
<references /> | |||
[[Category:Nuclear physics]] | |||
Revision as of 19:20, 12 December 2025
Nuclear fission is a physical process in which the nucleus of a fissile atom (such as Uranium-235 (U-235)) absorbs a free neutron and becomes unstable. The nucleus then splits into two smaller nuclei, releasing a large amount of energy, additional neutrons, and various byproducts. The released neutrons can go on to trigger further fission events, allowing a chain reaction to develop.[1][2]
Nuclear fission is the process used in nuclear reactors to generate electricity in a controlled manner. It is also the physical principle behind the explosive energy release in atomic bombs, where the reaction occurs in an uncontrolled form.
References
- ↑ Great Soviet Encyclopedia (3rd ed.), vol. 30: 'Nuclear Fission' (1978) (Russian: Boljšaja sovjetskaja enciklopjedija). [PDF] Moscow.
- ↑ "核裂变". Baidu Baike. Archived from the original on 2025-12-12.