Question

Which three steps, placed in the proper order, are required for a nuclear chain reaction?.

Answer 1

There are three basic steps in a nuclear fission chain reaction are Initiation, Propagation, Termination.

What are the three steps of nuclear fission ?

1. Initiation

The nuclear fission  of $U_{235} ^{92}$ is started by the absorption of a neutron; a single atom must react in order for the chain reaction to begin.

2. Propagation:-

With each stage producing additional product, this component of the process is repeated repeatedly. When $U_{236} ^{92}$ splits apart, neutrons are released, which start the nuclear fission of more uranium atoms.

3. Termination:

The chain will come to an end eventually. Termination might take place if the reactant $U_{235} ^{92}$ is exhausted or if the subsequent neutrons in the chain leave the sample without being absorbed by $U_{235} ^{92}$.

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