which best describes nuclear fission?\na nucleus spontaneously splits and absorbs energy.\ntwo nuclei…
which best describes nuclear fission?\na nucleus spontaneously splits and absorbs energy.\ntwo nuclei spontaneously combine and absorb energy.\na nucleus collides with a neutron and splits, releasing energy.\nnuclei combine to form a heavier nucleus, releasing energy.
Answer
Brief Explanations:
Nuclear fission is a process where a heavy - nucleus collides with a neutron and splits into two or more smaller nuclei, releasing a large amount of energy. The first option is incorrect as fission releases energy, not absorbs. The second option describes fusion (nuclei combining). The fourth option also describes fusion.
Answer:
A nucleus collides with a neutron and splits, releasing energy.