select the correct answer. what is the term that is used to describe a key factor required to start a…

select the correct answer. what is the term that is used to describe a key factor required to start a fission reaction? a. chain reaction b. critical mass c. neutron absorption d. neutron moderation
Answer
Answer:
B. critical mass
Brief Explanation:
A critical mass is needed to start a fission reaction. It's the minimum amount of fissile material for a self - sustaining chain reaction. A chain reaction is the process that occurs after reaching critical mass. Neutron absorption and moderation are processes during the reaction, not the key to starting it.