It is very difficult to stop or control a once chain reaction is started as it releases a greater amount of energy which can be hundred times more than any chemical reaction can release. It stops automatically when the concentration of atoms used in the reaction drops below the critical level.
When The Atomic Bomb Explodes And The Chain Reaction Starts but each atom can only split once. The chain reaction stops when the concentration of fissionable atoms drops below the critical level.
eAnswers Team
It is very difficult to stop or control a once chain reaction is started as it releases a greater amount of energy which can be hundred times more than any chemical reaction can release. It stops automatically when the concentration of atoms used in the reaction drops below the critical level.
H.P.Dubey
When The Atomic Bomb Explodes And The Chain Reaction Starts but each atom can only split once. The chain reaction stops when the concentration of fissionable atoms drops below the critical level.