Choose the INCORRECT Statement

Choose the INCORRECT statement.

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