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2. Consider the zinc blend (ZnS) crystal structure shown below, 14 a) Show that the minimum cation-anion radius ratio is 0.225. sions of the HCP crystal structure, b) Develop a general equation to relate the unit cell edge length (a) to the radius of Zn²+ and S²- and calculate the theoretical density of the crystal structure in g/cm³. 3. An alternating con 250.000 Z The ionic radii of Zn²+ and S²- are 0.060 and 0.184 nm, respectively. 0 2n

2. Consider the zinc blend (ZnS) crystal structure shown below, 14 a) Show that the minimum cation-anion radius ratio is 0.225. sions of the HCP crystal structure, b) Develop a general equation to relate the unit cell edge length (a) to the radius of Zn²+ and S²- and calculate the theoretical density of the crystal structure in g/cm³. 3. An alternating con 250.000 Z The ionic radii of Zn²+ and S²- are 0.060 and 0.184 nm, respectively. 0 2n

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter9: Liquids, Solids, And Materials
Section9.6: Crystalline Solids
Problem 9.9PSP
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2. Consider the zinc blend (ZnS) crystal structure shown below, a) Show that the minimum cation-anion radius ratio is 0.225. b) Develop a general equation to relate the unit cell edge length (a) to the radius of Zn²+ and S²- and calculate the theoretical density of the crystal structure in g/cm³. (8 The ionic radii of Zn²+ and S² are 0.060 and 0.184 nm, respectively. 3. An alternating copolymer is n 250,000 g/mol and ethyla O sions of the HCP crystal structure, 0 2n S
Transcribed Image Text:2. Consider the zinc blend (ZnS) crystal structure shown below, a) Show that the minimum cation-anion radius ratio is 0.225. b) Develop a general equation to relate the unit cell edge length (a) to the radius of Zn²+ and S²- and calculate the theoretical density of the crystal structure in g/cm³. (8 The ionic radii of Zn²+ and S² are 0.060 and 0.184 nm, respectively. 3. An alternating copolymer is n 250,000 g/mol and ethyla O sions of the HCP crystal structure, 0 2n S
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