Thorium is a slightly radioactive metallic chemical element with symbol Th and atomic number 90. It was discovered in 1828 and named after Thor, the Scandinavian god of thunder. Thorium is moderatively abundant in the Earth's crust and is about three times more abundant than uranium. When thorium is irradiated in a nuclear reactor, it can be transmuted into the fissile isotope uranium... https://prachicmi.livepositively.com/thorium-reactor-a-greener-alternative-to-conventional-nuclear-power/new=1