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Tungsten Sheet Wire

2019910the number of electrons in each of tungstens shells is 2, 8, 18, 32, 12, 2 and its electron configuration is xe 4f 14 5d 4 6s 2he tungsten atom has a radius of 139 pm and a van der waals radius of 210 pmungsten was discovered by torbern bergman in 1781 and first isolated by juan jos elhuyar and fausto elhuyar in 1783.