lead
Instance URI: http://resource.geosciml.org/classifier/cgi/commodity-code/lead
Within scheme: South Australian Commodity Codes
Lead is a chemical element in the carbon group with symbol Pb and atomic number 82. Lead is a soft and malleable metal, which is regarded as a heavy metal and an other metal. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed to air.