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Lead is soft and malleable, and has a relatively low melting point.
When freshly cut, lead is bluish-white; it tarnishes to a dull gray color when exposed to air.
In the late 19th century, lead's toxicity was recognized, and its use has since been phased out of many applications.
Lead is a neurotoxin that accumulates in soft tissues and bones, damages the nervous system, and causes blood disorders.
Lead is a chemical element with symbol Pb (from the Latin plumbum) and atomic number 82.
The Holsinger meteorite, the largest piece of the Canyon Diablo meteorite.
Lead's high density, low melting point, ductility and relative inertness to oxidation make it useful.
These properties, combined with its relative abundance and low cost, resulted in its extensive use in construction, plumbing, batteries, bullets and shot, weights, solders, pewters, fusible alloys, white paints, leaded gasoline, and radiation shielding.
Uranium–lead dating and lead–lead dating on this meteorite allowed refinement of the age of the Earth to 4.55 billion ± 70 million years.
Apart from the stable isotopes, which make up almost all lead that exists naturally, there are trace quantities of a few radioactive isotopes.