Silicon

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Revision as of 00:18, 18 April 2011 by imported>Milton Beychok (Replaced infobox and a few copy edits.)
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Silicon
28.0855(3)



  Si
14
1s22s22p63s23p2
[ ? ] Metalloid:
Properties:
In crystalline form, grayish metallic luster. Relatively inert chemically.
Uses:
Concrete, glass, refractories, ceramics, semiconductors.


Silicon is a chemical element, having the chemical symbol Si. Its atomic number (the number of protons) is 14. It has a standard atomic weight of 28.0855 g•mol −1, and is typically found as a solid.

Silicon is considered a member of the "Metalloid" class of element. At a pressure of 101.325 kPa, it has a boiling point 3,265 °C, and a melting point of 1,414 °C.

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