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Science Chemistry Chemical Principles: The Quest for Insight

Change in electrical resistance with increase in temperature differs in semiconductor and metallic conductor has to be explained. Concept Introduction: Semiconductors are the substances that have electrical conductivity between conductors and insulators such as materials of silicon and germanium. Valence band contains valence electrons of atom and these electrons jumps to conduction band when excited. Conduction band is the band of high energy and generally has no free electrons and is empty. Electrons get excited to this band and move freely and conduct electricity. Metallic conductors are those that cause electric current due to flow of electrons and their conductivity is decreased on increase in temperature.

Change in electrical resistance with increase in temperature differs in semiconductor and metallic conductor has to be explained. Concept Introduction: Semiconductors are the substances that have electrical conductivity between conductors and insulators such as materials of silicon and germanium. Valence band contains valence electrons of atom and these electrons jumps to conduction band when excited. Conduction band is the band of high energy and generally has no free electrons and is empty. Electrons get excited to this band and move freely and conduct electricity. Metallic conductors are those that cause electric current due to flow of electrons and their conductivity is decreased on increase in temperature.

Solution Summary: The author explains the difference in electrical resistance with increase in temperature between semiconductors and metallic conductors.

Chemical Principles: The Quest for Insight

Chemical Principles: The Quest for Insight

7th Edition

ISBN: 9781464183959

Author: Peter Atkins, Loretta Jones, Leroy Laverman

Publisher: W. H. Freeman

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Question

Chapter 3, Problem 3J.1E

Interpretation Introduction

Interpretation:

Change in electrical resistance with increase in temperature differs in semiconductor and metallic conductor has to be explained.

Concept Introduction:

Semiconductors are the substances that have electrical conductivity between conductors and insulators such as materials of silicon and germanium.

Valence band contains valence electrons of atom and these electrons jumps to conduction band when excited. Conduction band is the band of high energy and generally has no free electrons and is empty. Electrons get excited to this band and move freely and conduct electricity.

Metallic conductors are those that cause electric current due to flow of electrons and their conductivity is decreased on increase in temperature.

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Chapter 3, Problem 3J.3BST

Chapter 3, Problem 3J.2E

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Chapter 3 Solutions

Chemical Principles: The Quest for Insight

Ch. 3 - Prob. 3A.1AST Ch. 3 - Prob. 3A.1BST Ch. 3 - Prob. 3A.2AST Ch. 3 - Prob. 3A.2BST Ch. 3 - Prob. 3A.3AST Ch. 3 - Prob. 3A.3BST Ch. 3 - Prob. 3A.1E Ch. 3 - Prob. 3A.2E Ch. 3 - Prob. 3A.3E Ch. 3 - Prob. 3A.4E

Ch. 3 - Prob. 3A.5E Ch. 3 - Prob. 3A.6E Ch. 3 - Prob. 3A.7E Ch. 3 - Prob. 3A.8E Ch. 3 - Prob. 3A.9E Ch. 3 - Prob. 3A.10E Ch. 3 - Prob. 3B.1AST Ch. 3 - Prob. 3B.1BST Ch. 3 - Prob. 3B.2AST Ch. 3 - Prob. 3B.2BST Ch. 3 - Prob. 3B.3AST Ch. 3 - Prob. 3B.3BST Ch. 3 - Prob. 3B.4AST Ch. 3 - Prob. 3B.4BST Ch. 3 - Prob. 3B.5AST Ch. 3 - Prob. 3B.5BST Ch. 3 - Prob. 3B.6AST Ch. 3 - Prob. 3B.6BST Ch. 3 - Prob. 3B.7AST Ch. 3 - Prob. 3B.7BST Ch. 3 - Prob. 3B.8AST Ch. 3 - Prob. 3B.8BST Ch. 3 - Prob. 3B.1E Ch. 3 - Prob. 3B.2E Ch. 3 - Prob. 3B.5E Ch. 3 - Prob. 3B.6E Ch. 3 - Prob. 3B.9E Ch. 3 - Prob. 3B.10E Ch. 3 - Prob. 3B.11E Ch. 3 - Prob. 3B.12E Ch. 3 - Prob. 3B.13E Ch. 3 - Prob. 3B.14E Ch. 3 - Prob. 3B.15E Ch. 3 - Prob. 3B.16E Ch. 3 - Prob. 3B.17E Ch. 3 - Prob. 3B.18E Ch. 3 - Prob. 3B.19E Ch. 3 - Prob. 3B.20E Ch. 3 - Prob. 3B.21E Ch. 3 - Prob. 3B.22E Ch. 3 - Prob. 3B.23E Ch. 3 - Prob. 3B.24E Ch. 3 - Prob. 3B.25E Ch. 3 - Prob. 3B.26E Ch. 3 - Prob. 3B.27E Ch. 3 - Prob. 3B.28E Ch. 3 - Prob. 3B.29E Ch. 3 - 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Similar questions

8.97 The doping of semiconductors can be done with enough precision to tune the size of the band gap in the material. Generally, in order to have a larger band gap, the dopant should be smaller than the main material. If you are a materials engineer and need a semiconductor that has lower conductivity thin pure silicon, what clement or elements could you use as your dopant? (You do not want either an n- or a p- type material) Explain your reasoning.
Discuss the dependence of strength on temperature for metals, ceramics and polymers from the perspective of inter-atomic bonding.
Define unit cell

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