The rutile and fluorite structures, shown here (anions arecolored green), are two of the most common structure typesof ionic compounds where the cation to anion ratio is 1 : 2.(a) For CaF2 and ZnF2 use ionic radii, Ca2+ (r = 1.14 A° ),Zn2+ (r = 0.88 A° ), and F- (r = 1.19 A° ), to predict whichcompound is more likely to crystallize with the fluoritestructure and which with the rutile structure. (b) What arethe coordination numbers of the cations and anions in eachof these structures? RutileFluorite

(a) The structure adopted by the ionic compound depends upon the relative size of the ions. If the…

Answered: Rutile Fluorite

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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The rutile and fluorite structures, shown here (anions are
colored green), are two of the most common structure types
of ionic compounds where the cation to anion ratio is 1 : 2.
(a) For CaF2 and ZnF2 use ionic radii, Ca²⁺ (r = 1.14 A° ),
Zn²⁺ (r = 0.88 A° ), and F^- (r = 1.19 A° ), to predict which
compound is more likely to crystallize with the fluorite
structure and which with the rutile structure. (b) What are
the coordination numbers of the cations and anions in each
of these structures?

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