Choose the INCORRECT statement.
◦ An isotope that will fission when hit by a neutron is said to be fertile.
◦ A moderator slows down neutrons.
◦ Control rods absorb energy to control the fission reaction.
◦ Electrons dislodged from an atom or molecule by alpha or beta particles are called primary electrons.
◦ Radiation exposes photographic film the same as light.