The control rods in a nuclear reactor regulate the chain reaction by:

Question

Quizplus · Accepted Answer

The control rods in a nuclear reactor are made of materials such as cadmium, boron, or hafnium which can absorb neutrons. By inserting the control rods into the core, the number of neutrons available for fissioning uranium or plutonium atoms are reduced, thereby slowing down or stopping the chain reaction. This allows for control of the reactor's power output and prevents it from overheating or becoming unstable.

The Control Rods in a Nuclear Reactor Regulate the Chain