Tungsten is a metallic element, ranking 74th in atomic number. It has the characteristics of high melting point, high density and high hardness, so it is widely used to manufacture high-temperature equipment and alloys. The chemical properties of tungsten are very stable and will not be eroded by most acids and bases, and its chemical properties can remain unchanged for a long time. The electronic configuration of tungsten is [Xe]4f 14 5d4 6s2, which belongs to 6B group in the periodic table of elements.
Because of its excellent physical and chemical properties, tungsten has become an important material in many high-tech fields, such as aerospace, metallurgy, semiconductors, medical devices, etc., and has played a vital role in the development of human society.