What naturally occurring radioisotope is used as the fuel for a nuclear reactor?
The naturally occurring radioisotope which is used as the fuel for a nuclear reactor is the Uranium-235. It has been said that one kilogram of Uranium-235 can theoretically male about 20 terajoules of energy when used as a fuel for power plants.
Uranium 235 is the naturally occurring radioisotope is used as the fuel for a nuclear reactor.