Table gives the ionic radii for K^+ and O^2- as 0.138 and 0.140nm, respectively.(a) What is the coordination number for each O^2- ion?(b) Brief y describe the resulting crystal structure for K2O.(c) Explain why this is called the antif uorite structure CationA1³+Ba²+Ca²+Cs+Fe²+Fe³+K+Mg²+2+Mn²+Na+Ni²+Si4+Ti4+IonicRadius (nm)0.0530.1360.1000.1700.0770.0690.1380.0720.0670.1020.0690.0400.061AnionBrCITFI™0²-S²-IonicRadius (nm)0.1960.1810.1330.2200.1400.184

Answer: Coordination number of an ionic compound is decided on the basis radius ratio of cation and…

Answered: the ionic radii for K^+ and O^2- as…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Table gives the ionic radii for K^+ and O^2- as 0.138 and 0.140
nm, respectively.
(a) What is the coordination number for each O^2- ion?
(b) Brief y describe the resulting crystal structure for K2O.
(c) Explain why this is called the antif uorite structure

Cation
A1³+
Ba²+
Ca²+
Cs+
Fe²+
Fe³+
K+
Mg²+
2+
Mn²+
Na+
Ni²+
Si4+
Ti4+
Ionic
Radius (nm)
0.053
0.136
0.100
0.170
0.077
0.069
0.138
0.072
0.067
0.102
0.069
0.040
0.061
Anion
Br
CIT
F
I™
0²-
S²-
Ionic
Radius (nm)
0.196
0.181
0.133
0.220
0.140
0.184

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