Respuesta :
Answer:
B. it splits into two pieces of similar size
Explanation:
Nuclear fission is a process in physics that consists of dividing the nucleus of an atom considered unstable into two smaller nuclei of similar size by bombarding particles like neutrons.
This process is an exothermic chemical reaction and occurs when there is a large release of energy. It is considered a form of nuclear transmutation, because the generated fragments are not of the same element as the isotope that generated them.