Pb
Plumbum
History
Lead was the first metal, which people began to melt. In ancient Egypt it was made from coins, medallions. In ancient Rome did plumbing.
Nowadays
One of the first applications of lead obtained in the chemical industry, where it makes different parts of chemical equipment, and wherever you want a high corrosion resistance. Lead is used in alloys easily fusible for the fuses in the arms, to protect against gamma radiation, in printing inks, paste.