What to do with the nuclear waste produced by nuclear reactors. To answer this question, the transmutation of uranium 235 into barium and krypton was again shown. The stability of uranium nuclei and the nuclei of the barium an krypton was shown to be a function of the ratio of neutrons to protons. Stability decreased in the high weight nuclei as the ration increased toward or above 1.5 to 1. In the light nuclei formed, the ratio was close to 1.5:1, making them unstable and radioactive. A stable medium weight nuclei ratio was about 1:1 or slightly above. These radioactive nuclear waste products must be stored for hundreds of thousands of years. A video was used showing how some countries are burying the waste in deep tunnels lined with special clay rock to absorb any radiation.
The transmutation of uranium 238 into the poison plutonium was also shown through a series of steps from uranium to plutonium.