Define Nuclear Fission Reaction

Nuclear fission subdivision of a heavy atomic nucleus such as that of uranium or plutonium into two fragments of roughly equal massthe process is accompanied by the release of a large amount of energy.

Nuclear reactor vessels china drama sub indo. The fission process often produces free neutrons and photons in the form of gamma rays and releases a large amount of energyin nuclear physics nuclear fission is either a nuclear reaction or a radioactive decay processthe case of decay process is called spontaneous fission. Radioactive fission where the center of a heavy element spontaneously emits a charged particle as it breaks down into a. In nuclear fission the nucleus of an atom breaks up into two lighter nuclei.

In a typical nuclear fission reaction more than one neutron is released by each dividing nucleus. Nuclear fission of heavy elements was discovered on. Nuclear chain reaction is a continuous series of nuclear fission reactions.

The process may take place spontaneously in some cases or may be induced by the excitation of the nucleus with a. A self sustaining process in which one reaction initiates the next. What are nuclear reactions.

In nuclear physics and nuclear chemistry nuclear fission is a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into two or more smaller lighter nucleithe fission process often produces gamma photons and releases a very large amount of energy even by the energetic standards of radioactive decay. When these neutrons collide with and induce fission in other neighboring nuclei a self sustaining series of nuclear fission reactions known as a nuclear chain reaction can result figure 2162. Uncontrolled reactions can fuel nuclear weapons.

It was pointed out in the preceding articles that the neutron induced fission reaction is the reaction in which the incident neutron enters the heavy target nucleus fissionable nucleus forming a compound nucleus that is excited to such a high energy level e excitation e critical that the nucleus splits into two large fission fragments. Fission is a type of nuclear reaction that may occur spontaneously or as a result of a particle striking an atomic nucleus. Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles neutrons or protonsthe difference in mass between the reactants and products is manifested as either the release or the absorption of energythis difference in mass arises due to the difference in atomic binding energy between the nuclei before and.

The reason fission occurs is that energy upsets the balance between the electrostatic repulsion between positively charged protons and the strong nuclear force that holds protons and neutrons together. Definition nuclear fission nuclear fusion other types of nuclear reactions.