Thorium is a mildly radioactive metallic chemical element with symbol Th and atomic number 90. It was discovered in 1828 and named after Thor, the Norse god of thunder. In nature, thorium is found in the minerals monazite, thorite and brotite and is quite common, about three times more abundant than uranium in the Earth's crust. However, thorium is not readily usable for nuclear techn... https://justpaste.me/dV8C2