Nuclear Fission

Key to elements in animation.

Nuclear Fission is the process involved to produce an atomic bomb. The neutron of the initial fission reacts with uranium 235 (enriched to 99%), which then splits and releases more neutrons and two other elements. Each of these newly released neutrons in turn goes and splits its own uranium 235 atom. This process continues to produce a chain reaction.

In order to sustain a chain reaction the fissionable material must have above the critical mass. So if there is above the critical mass of Uranium 235 there is enough to produce a bomb. In a nuclear power plant there is not pure uranium 235, it is only 3% to 4% enriched, so it can not explode like a nuclear bomb.

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