In 1941, gold was created by neutron bombardment from mercury, but the isotopes were all radioactive.
What is neutron irradiation? When a high-energy neutron bombards a nucleus to start nuclear fission, more neutrons are released during the process. A neutron has no charge, thus when it is pointed at the nucleus, it is not repulsed.
When uranium-235 is irradiated with neutrons, the uranium atoms split, releasing heat and atoms with decreasing atomic numbers as well as more neutrons. Similar to typical fossil fuel power plants, this process, known as fission, may harness the heat produced to produce electricity.
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