atomic number 30
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|Noun||1.||atomic number 30 - a bluish-white lustrous metallic element; brittle at ordinary temperatures but malleable when heated; used in a wide variety of alloys and in galvanizing iron; it occurs naturally as zinc sulphide in zinc blende|
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
spelter - impure zinc containing about three percent lead and other impurities (especially in the form of ingots)