Lead has a atomic mass of 207.2 and a atomic number of 82. Lead boils at 3182 degrees and melts at 621.5 degrees. Lead has a density of 11.342. Leads latin name is Plumbum, and its symbol is Pb. Lead can be used for paints, bullets, ammunition, weights, batteries, and as a radiation sheild. Lead makes up .0013% of the earths crust. Lead is found as a solid. Lead can be found in the air, water, and in the soil.