Thorium is a naturally occurring radioactive element that has the potential to revolutionize the way we produce nuclear energy. Thorium has a higher energy density than uranium, making it a more efficient fuel source. Additionally, thorium reactors produce significantly less radioactive waste than traditional
From Wikipedia
Thorium is a chemical element; it has symbol Th and atomic number 90. Thorium is a weakly radioactive light silver metal which tarnishes olive grey when it is exposed to air, forming thorium dioxide; it is moderately soft, malleable, and has a high melting point. Thorium is an electropositive actinide whose chemistry is dominated by the +4 oxidation state; it is quite reactive and can ignite in air when finely divided.