Which fact is true during a fission chain reaction?(1 point)ResponsesThe 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

The true fact during a fission chain reaction is: The number of freely-moving neutrons increases over time.

In a fission chain reaction, when a nucleus undergoes fission, it releases neutrons. These neutrons can then initiate further fission events in other nuclei, leading to an increase in the number of freely-moving neutrons as the reaction continues.