Within the reactor the stationary rods are the fuel rods and

Within the reactor, the stationary rods are the fuel rods and contain the fuel. The rods that move up and down are the control rods. What do the little dots that move between the fuel rods represent? _________

I though it was elements but its wrong. Please help!

Solution

The answer is: neutron that move between the fuel rod. Thse are made with netron absorbing material such as boron and cadmium, and are inseted or withdrawn from the core tp control the rate of reaction.