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There are both controlled and uncontrolled fission reactions. The reactors in nuclear power plants and submarines make use of a controlled nuclear reaction. Nuclear weapons make use of an uncontrolled reaction.

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8y ago
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Janice Lindegard

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4y ago

I'm not certain what you mean by an uncontrolled nuclear reaction, or which nuclear reaction you are referring to. I'm going to assume you are referring to the fission reaction. In fission, certain radioactive elements (such as Uranium) are bombarded with neutrons. The targeted element splits (fissions) into smaller elements while also releasing some neutrons, which cause more fissions--a chain reaction. If this process is allowed to continue with no intervention, it is "uncontrolled." Controlling the reaction requires slowing and capturing some of the neutrons, such as is done in generating electricity using a nuclear reactor. This is a very simplified explanation, but I think it may suffice.

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15y ago

Have a look at some of the story of Chernobyl.

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11y ago

A reaction, as in fission, fusion, or radioactive decay, that alters the energy, composition, or structure of an atomic nucleus.

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10y ago

It is the kind of fission that occurs in nuclear fission bombs

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12y ago

Atomic fission bomb.

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Q: What is an uncontrolled nuclear fission?
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Related questions

What is an example of uncontrolled nuclear fission reaction?

Atomic fission bomb.


A nuclear reactor produces energy from uncontrolled fission?

False, the fission in nuclear reactors is controlled with the movable control rods.


Why does the atomic bomb make an explosion?

uncontrolled nuclear fission and/or fusion.


Is a bomb an example of nuclear energy?

Yes, radioactive decay results in the release of nuclear energy. The radioactive decay of an atom is the result of changes in the atom's nucleus, so energy released will be nuclear energy by definition.


What causes a nuclear explosion?

An uncontrolled release of nuclear binding energy. This can be either by fission or fusion or some mixture of both.


What are the elements of nuke?

Nuclear bombs are done by an uncontrolled process of nuclear fission. This means that nukes probably contain Uranium 235 primarily.


Where do you get nuclear fission?

You get nuclear fission in:nuclear fission reactorsatomic fission bombs


What are the disadvantages of nuclear fission and fusion?

For fusion, the main disadvantage is that nobody has been able to make it work. However it does have promise and if it can be developed it will not produce the dangerous fission products that fission does. For fission, see reply to question 'What are the disadvantages of nuclear fission power'


What is the splitting of an atoms nucleus into two smaller nuclei is called?

nuclear fission


The splitting of a heavy nucleus is called?

nuclear fission


What type of reaction happens in a nuclear power plant?

Nuclear fission


What is splitting of atomic nuclei?

FISSION. nobody on this website knows the answer..... SHAME