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

Question

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 decreases over time.
The number of freely-moving neutrons decreases over time.

The number of freely-moving neutrons increases over time.
The number of freely-moving neutrons increases over time.

The total number of protons will increase over time.

Answer 1

The correct response is: The number of freely-moving neutrons decreases over time.

In a fission chain reaction, neutrons are emitted as nuclei split. Some of these neutrons can go on to induce further fission reactions, but as reactions proceed and materials are consumed, the number of available (freely-moving) neutrons typically decreases over time.