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Periodic Table
Elemental Facts: 
Symbol
  Te 
Atomic Number
  52
Atomic Mass
  127.6
Electron Configuration
 2, 8, 18, 18, 6
[Kr].4d10.5s2.5p4
Valence Number 6
Melting Point 722.66 °K, 449.51 °C, 841.12 °F
Boiling Point 1261 °K, 988 °C, 1810 °F 
Family
  16
Series
  6
Element Classification
  Oxygen Family, Metalloid
Density
  6.24 g/cm3
Crystal Structure  trigonal
State of Matter
  Solid
Date of Discovery
  1782
Person Who Discovered  Muller von Reichensten
Historical Facts and Elements Uses:
Discovered in 1782, tellurium is a semi metal, sharing properties with metals and nonmetals.  In its purest state, tellurium has a metallic luster and is silvery white in appearance.  Tellurium occurs in nature in its elemental state, but more reliable sources include the minerals sylvanite, calaverite, and krennerite.  Tellurium is recovered as a by-product of copper ore refining. In many respects it is very similar to its sister elements selenium and sulfur. 
Tellurium is used as an alloying agent. Alloyed with copper and stainless steel, tellurium increases the machinable of those metals. Some are used in the rubber industry and it is also used in the manufacture of blasting caps. 

 
Bibliography:
http://nobel.scas.bcit.ca/resource/ptable/elementsalpha.htm, 12-13-01
http://www.webelements.com/webelements/scholar/index.html,12-13-01

 
Periodic Table Link

 
Created By:
 Jasey
Last Updated:
 12-13-01
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