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Lead is a chemical element in the carbon group with symbol Pb and atomic number *2. 
Lead is a soft, malleable and heavy post-transition 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. 
Lead has a shiny chrome-silver luster when it is melted into a liquid. 
It is also the heaviest non-radioactive element.