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Solved: Qualitative Comparison of Semiconductor Band

Chemistry: The Central Science | 13th Edition | ISBN: 9780321910417 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward; Matthew E. Stoltzfus ISBN: 9780321910417 77

Solution for problem 1PE Chapter 12.3SE

Chemistry: The Central Science | 13th Edition

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Chemistry: The Central Science | 13th Edition | ISBN: 9780321910417 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward; Matthew E. Stoltzfus

Chemistry: The Central Science | 13th Edition

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Problem 1PE

Qualitative Comparison of Semiconductor Band Gaps

Will GaP have a larger or smaller band gap than ZnS? Will it have a larger or smaller band gap than GaN?

Which of these statements is false?

<a) As you go down column 4A in the periodic table, the elemental solids become more electrically Conducting. {b> As you go down column 4A in the periodic table, the band gaps of the elemental solids decrease. (c> The valence electron count for a compound semiconductor averages out to four per atom. <d> Band gap energies of semiconductors range from --0.1 to 3.5 eV. . {e> In general, the more polar the bonds are in compound semiconductors, the smaller the band gap.

Step-by-Step Solution:
Step 1 of 3

Chemical Synthesis: Retrosynthetic Analysis attributed to E.J. Corey Symbols: Retrosynthesis: Planning a synthesis backwards. Start from the product target molecule work backwards to simpler molecules and propose a series of reactions to assemblethese smaller molecules into the larger target molecule. Some terms 1. Target molecule: the molecule we are going to prepare 2. Precursors: molecules of simpler structure used to prepare the target. 3. Disconnection: a proposed bond cleavage for preparing the desired bond. When working forward, there needs to be a logical chemical reaction to create the new bond. Possible disconnections heterolytic (ionic) or homoly

Step 2 of 3

Chapter 12.3SE, Problem 1PE is Solved
Step 3 of 3

Textbook: Chemistry: The Central Science
Edition: 13
Author: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward; Matthew E. Stoltzfus
ISBN: 9780321910417

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Solved: Qualitative Comparison of Semiconductor Band