How does critical mass play a role in nuclear reactions?

1 Answer
Jan 10, 2017

Critical mass is the minimum amount of fissionable material that must be assembled for a sustained fission reaction to take place.

Explanation:

Rather than comment much further, let me direct you to this site:

http://www.atomicarchive.com/Fission/Fission3.shtml

where you will find most of the information you are looking for, I think.