Question

Briefly discuss the nature of bonding in metals, insulators, and semiconducting elements. 

   Briefly discuss the nature of bonding in metals, insulators, and semiconducting elements.
Chemistry
Chemistry
Raymond Chang, Jason… 14th Edition
Chapter 21, Problem 20 ↓
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Briefly discuss the nature of bonding in metals, insulators, and semiconducting elements.
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Transcript

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00:01 The difference between the conductor, semiconductor and the insulator can be defined based on the valence and conduction bond.
00:12 In metal, the conduction and balanced bond doesn't have any kind of gap between.
00:19 So the balanced bond and the conduction bond are near to each other.
00:24 There is no gap and easily electron can be moved from the balanced bond to the conduction bond.
00:31 We can imagine that crystals in metallic elements are as arrays of positive ions that immerse in the sea of delocalized valence electrons.
00:46 Because of the balance and the conduction bonds are adjacent to each other, the amount of energy needed to promote a valence electron to the conduction bond is negligible, so the electron can freely move through the metal and that's why the metals are good conductors.
01:06 It is for the conductor...
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