Lead—a metal that archaeological discoveries prove was used at least 5,000 years ago—is the heaviest element in Group 14 of the periodic table, a group often known as the carbon family. It is a metallic element with atomic number 82, with symbol Pb, atomic weight 207.19, specific gravity 11.35, melting point 621.32°F (327.4°C), and boiling point 3,191°F (1,755°C).
