-- card: 30010 from stack: in -- bmap block id: 0 -- flags: 0000 -- background id: 14320 -- name: Te -- part contents for background part 14 ----- text ----- Te -- part contents for background part 22 ----- text ----- Tellurium -- part contents for background part 15 ----- text ----- 52 -- part contents for background part 17 ----- text ----- 127.60 -- part contents for background part 18 ----- text ----- 6.24 -- part contents for background part 19 ----- text ----- 449.5 -- part contents for background part 20 ----- text ----- 989.8 -- part contents for background part 21 ----- text ----- +2,+4,+6 -- part contents for background part 16 ----- text ----- (L. tellus, earth) Discovered by Muller von Reichenstein in 1782 and named by Klaproth in 1798. Found mainly as calaverite and with other metals in the US, Canada, Peru and Japan. -- part contents for background part 23 ----- text ----- silvery-white, metalloid, metallic luster when pure, brittle, conductivity increases with temperature and light, burns in air -- part contents for background part 24 ----- text ----- semiconductor, alloying with cast iron, copper and stainless steel, addition to lead to prevent corrosion, ceramics -- part contents for background part 29 ----- text ----- 0.135 -- part contents for background part 26 ----- text ----- Electron Configuration: 1s 2s 2p 3s 3p 3d 4s 4p 4d 4f 5s 5p 5d 5f 6s 6p 6d 6f 7s 2 2 6 2 6 10 2 6 10 2 4