
Suresh R. answered 07/30/14
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One free neutron colliding with Uranium 235 atom forming 3 more free neutrons along with smaller atoms ie Barium 42 and Krypton 91 (All three are isotopes) is the basis of nuclear fission reactions, and this chain reaction is controlled with a critical mass ( needed for self-sustaining chain reaction ) in Nuclear Reactors.
92 U 235 + 0 n 1 --------> 56 Ba 142 + 36 Kr 91 + 3 0 n 1
The missing Mass (lost during the reaction) is converted into large amounts of Energy as per E = mc^2.
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