Which fact is true during a fission chain reaction?(1 point) Responses The total number of protons will decrease over time. The total number of protons will decrease over time. The number of freely-moving neutrons increases over time. The number of freely-moving neutrons increases over time. The number of freely-moving neutrons decreases over time. The number of freely-moving neutrons decreases over time. The total number of protons will increase over time.

Answer 1

During a fission chain reaction, the correct fact is: The number of freely-moving neutrons increases over time.

In a fission reaction, when an atomic nucleus splits, it releases neutrons. These emitted neutrons can then induce further fission reactions in nearby nuclei, leading to a chain reaction. Therefore, as the reaction proceeds, the number of neutrons available to continue the process increases, at least initially.