sentence2_structure: A neutron<>collides<>with an atom of u-235 during the basic nuclear fission process
sentence1: The Nature Of The Fission Process The nucleus of an atom can interact with a neutron that travels nearby in two basic ways.
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?