A hexagonal close-packed layer in two dimensions is shown in figure 2. By identifying a suitable unit cell, calculate the packing fraction of this structure.

Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter21: Structure And Bonding In Solids
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a) A hexagonal close-packed layer in two dimensions is shown in figure 2.
By identifying a suitable unit cell, calculate the packing fraction of this structure.

Figure 2: A hexagonal close-packed layer of atoms in two dimensions.
(a)
(b)
Figure 3: Conventional unit cells for: (a) the fcc structure; (b) the bcc structure.
Transcribed Image Text:Figure 2: A hexagonal close-packed layer of atoms in two dimensions. (a) (b) Figure 3: Conventional unit cells for: (a) the fcc structure; (b) the bcc structure.
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