Answered: Calcium fluoride forms a crystalline…

Calcium fluoride forms a crystalline lattice in fluorite. The calcium ions are the darker spheres in the unit cell shown. Choose the best description of the packing of the calcium ions.

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter21: The Chemistry Of The Main Group Elements

Section: Chapter Questions

Problem 122SCQ

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Concept explainers

Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.

Question

Calcium fluoride forms a crystalline lattice in fluorite. The calcium ions are the darker spheres in the unit cell shown. Choose the best description of the packing of the calcium ions.

A) Simple Cubic
B) Body Centered Cubic
C) Face Centered Cubic
Ca+2
D) Hexagonal Closest Packed
F

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