2. For each of the following crystal structures: (a) Simple Crystal (SC) (b) Face-Centered Cubic (FCC) (c) Body-Centered Cubic (BCC) (d) Hexagonal Close-Packing (HCP) (e) Diamond Cubic (DC) Draw the conventional unit cell and calculate the following: (i) (ii) #atoms/unit cell coordination number (CN) (iii) Atomic Packing Fraction (APF) ] Explain your reasoning for choosing said values for each of the parameters. You can use the standard c/a ratio for HCP and R/a ratio for DC structure without deriving, but please explain in words the rationale behind getting the said ratios.

2. For each of the following crystal structures: (a) Simple Crystal (SC) (b) Face-Centered Cubic (FCC) (c) Body-Centered Cubic (BCC) (d) Hexagonal Close-Packing (HCP) (e) Diamond Cubic (DC) Draw the conventional unit cell and calculate the following: (i) (ii) #atoms/unit cell coordination number (CN) (iii) Atomic Packing Fraction (APF) ] Explain your reasoning for choosing said values for each of the parameters. You can use the standard c/a ratio for HCP and R/a ratio for DC structure without deriving, but please explain in words the rationale behind getting the said ratios.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter1: Atomic Structure

Section: Chapter Questions

Problem 6RQ: How many valence electrons are generally contained in materials used for insulators?

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