Barkley,+Shania

Thorium Th Melting point 3300 Celsius Boiling point 4786 Atomic mass 232.03806(2) Atomic number 90

Density 11725 Protons 90 Electrons 90 Neutrons 142 Electron configuration [Rn].6d2.7s2 Discovered by Jons Berzelius Discovered in Sweden in 1829 How discovered in a mineral given to him by the Reverend Has Morten Thrane Esmark Were produced, it is found in thorite and thorianite in New England (USA) and other sites . Reacts with air, water, halogens, acids and bases Recovered commercially from the mineral monazite thorium is dangerous to the health of humans and other animals

its current energy value in a cost value -effected manner remains a challenge and will require considerable R&D investment [|there is come commercial sale of thorium] thorium is soluble in acids and reacts slowly with oxygen at room temperature