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Te - Tellurium

Tellurium

 Tellurium 
Te
Atomic Number: 52
Atomic Weight: 127.6
Element Type: Non-Metal
Crystal Structure: Hexagonal
Melting Point: 449.51°C = 841.118°F = 722.66 K
Boiling Point: 988.0°C = 1810.4°F = 1261.15 K
Critical Temp: °C = °F = K
Atomic Radius: 1.42 Å (Å = Angstrom = 10-10 m)
Covalent Radius: 1.36 Å
Electronegativity: 2.1

History

(L. tellus, earth) Discovered by Muller von Reichenstein in 1782; named by Klaproth,who isolated it in 1798.


Sources

Tellurium is occasionally found native, but is more often found as the telluride ofgold (calaverite), and combined with other metals. It is recovered commercially from theanode muds that are produced during the electrolytic refining of blister copper. The U.S.,Canada, Peru, and Japan are the largest Free World producers of the element.






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Science Quote

'A scientist is happy, not in resting on his attainments but in the steady acquisition of fresh knowledge.'

Max Planck
(1858-1947)





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