Lead
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Lead is a chemical element with the symbol Pb and atomic number 82. It is a heavy metal, denser than most common materials. Lead is soft, malleable, and has a relatively low melting point. When freshl
Lead fishing weights
A sample of lead solidified from the molten state
The Holsinger meteorite, the largest piece of the Canyon Diablo meteorite. 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.
Heavy metals
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Heavy metals is a controversial and ambiguous term for metallic elements with relatively high densities, atomic weights, or atomic numbers. The criteria used, and whether metalloids are included, vary
Crystals of osmium, a heavy metal nearly twice as dense as lead
In a cello (example shown above) or a viola the C-string sometimes incorporates tungsten; its high density permits a smaller diameter string and improves responsiveness.
Cerium(IV) oxide is used as a catalyst in self-cleaning ovens.
Neodymium sulfate (Nd2(SO4)3), used to colour glassware