Lead

82
Pb
207.2

Properties

Symbol Name Atomic Number Atomic Weight Group Number
Pb Lead 82 207.2 14

Description

Standard State: solid at 298 K
Color: bluish white

Lead has been known for a long time and is mentioned in Exodus.  The alchemists believed lead is the oldest metal and associated it with the planet Saturn. Native Lead occurs in nature, but it is rare.  Lead is mainly obtained from galena by a roasting process.  It is very resistant to corrosion.  Back in the time of Romans emperor, they used lead as drain in baths that had their emblem on them are still in use today.  Its alloys include solder type metal, and various antifriction metals.   Great quantities of lead, both as the metal and as the dioxide, are used in storage batteries.  It is also used as an antiknock additive in gasoline.