Zinc is in some cases chemically similar to magnesium. Zinc is also known as spelter and is a metallic chemical element. It has the symbol Zn and atomic number 30. It is the first element in group 12 of the periodic table. The greatest exploited zinc ore is sphalerite, a zinc sulphide. Zinc production consists of froth flotation of the ore, roasting, and final extraction using electricity (electro winning).
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