sentence2_structure: A neutron<>collides<>with an atom of u-235 during the basic nuclear fission process
sentence1: Neutrons collide with an atom of 235 U, which splits into two fragments called fission products , producing energy (heat) and two more neutrons.
sentence2: A neutron collides with an atom of u-235 during the basic nuclear fission process.
question: What type of particle collides with an atom of u-235 during the basic nuclear fission process?