025 - Covalent Network Solids
In this video Paul Andersen explains how covalent network solids form elementally (like graphite) or by combining multiple nonmetals (like quartz). Covalent network solids contain elements from the carbon group because they have four valence electrons and can create three-dimensional shapes. Silicon crystals act as semiconductors and can be either n-type or p-type doped to increase their effectiveness.
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Music Attribution
Title: String Theory
Artist: Herman Jolly
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All of the images are licensed under creative commons and public domain licensing:
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"File:Quartz, Tibet.jpg." Wikipedia, the Free Encyclopedia, August 17, 2013. http://en.wikipedia.org/w/index.php?t....
"File:Silicon-unit-cell-3D-balls.png." Wikipedia, the Free Encyclopedia. Accessed August 19, 2013. http://en.wikipedia.org/wiki/File:Sil....
"File:Transbauformen.jpg." Wikipedia, the Free Encyclopedia. Accessed August 19, 2013. http://en.wikipedia.org/wiki/File:Tra....
Materialscientist, Diamond_and_graphite jpg: User:Itubderivative work: Diamond and Graphite Samples with Their Respective Structures, 11:37 (UTC). Diamond_and_graphite.jpg. http://commons.wikimedia.org/wiki/Fil....
