what happens when the amount of fissionable material exceeds the critical mass?\no the chain reaction…

what happens when the amount of fissionable material exceeds the critical mass?\no the chain reaction accelerates as more neutrons are generated with each round of reaction.\no the chain reaction is not sustained and eventually stops.\no the density of the reacting particles decreases, slowing the reaction.\no the amount of material needed to establish a new critical mass increases.
Answer
Brief Explanation:
When the amount of fissionable material exceeds the critical mass, more neutrons are available to cause further fissions. This leads to an acceleration of the chain - reaction as each fission event generates more neutrons that can trigger additional fissions.
Answer:
The chain reaction accelerates as more neutrons are generated with each round of reaction.