Yes, by nuclear fission.
uranium
The answer is neutron. :)
Neutrons
Neutrons
They split the uranium atom.
The atom of uranium can split in a process called nuclear fission to generate electricity in nuclear power plants.
The nuclear fission of uranium is a reaction with neutrons.
Nuclear fission
Probably you think at fission products.
a free neutron can trigger the split of a particle like uranium 238. It will produce a smaller atom (eg. proctantium), a beta particle and energy.
Pure Uranium is radioactive; thus harmful. Inside a nuclear reactor, atoms get split. When the Uranium atom is split, it releases a huge amount of energy. This energy is called nuclear energy. Also the normal Uranium is not used in reactors. The Uranium that is used is enhanced; it is an isotope of Uranium. Uranium-237 and Uranium-238 are used in nuclear reactors. I hope this answer was useful for you.
Neutrons; but the cross section area is not so important.