Lead
Element, chemical symbol Pb. Obtained from galena ore lead is a heavy metal (specific gravity 11.34) that has a low melting point of 327°C (621°F). It is a very soft, bluish-white metal that is highly malleable and ductile. It is a poor conductor of electricity, resistant to corrosion and radiation and a good noise-dampening material. Lead had been used for cable coverings, for soldering and for heat-treatment baths; however, its usage has been declining because of toxicity concerns.