82 Pb 207.21
Lead
POST-TRANSITION METAL
Phase: Solid
Discovered: Middle East
Block: P
Summary
Lead (/lɛd/) is a chemical element in the carbon group with symbol Pb (from Latin:plumbum) and atomic number 82. 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.
Source: WikipediaPhysical Properties
Atomic Mass 207.21 u
Density 11.34 g/cm³
Melting Point 600.61 K
Boiling Point 2022 K