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Sn - Tin

Tin

 Tin 
Sn
Atomic Number: 50
Atomic Weight: 118.71
Element Type: Metal
Crystal Structure: Tetragonal
Melting Point: 231.93°C = 449.474°F = 505.08 K
Boiling Point: 2602.0°C = 4715.6°F = 2875.15 K
Critical Temp: °C = °F = K
Atomic Radius: 1.72 Å (Å = Angstrom = 10-10 m)
Covalent Radius: 1.41 Å
Electronegativity: 1.96

History

(anglo-Saxon, tin; L. stannum) Known to the ancients.


Sources

Tin is found chiefly in cassiterite (SnO2). Most of the world's supply comes fromMalaya, Bolivia, Indonesia, Zaire, Thailand, and Nigeria. The U.S. produces almost none,although occurrences have been found in Alaska and California. Tin is obtained by reducingthe ore with coal in a reverberatory furnace.



Science Quote

'As long as men are free to ask what they must; free to say what they think; free to think what they will; freedom can never be lost and science can never regress. '

J. Robert Oppenheimer
(1904-1966)


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