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An octahedral void is surrounded by how ...

An octahedral void is surrounded by how many spheres ?

A

6

B

4

C

8

D

12

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To solve the question "An octahedral void is surrounded by how many spheres?", we can follow these steps: ### Step 1: Understand the Structure of an Octahedral Void An octahedral void is a type of interstitial site in a crystal lattice where a void (or empty space) is formed by the arrangement of spheres (atoms or ions) around it. ### Step 2: Visualize the Arrangement In a crystal lattice, an octahedral void is formed when spheres are arranged in two layers. The centers of these spheres can be visualized as forming two equilateral triangles, one above the void and one below it. ### Step 3: Count the Spheres Surrounding the Void - In the upper layer, there are 3 spheres whose centers form an equilateral triangle. - In the lower layer, there are also 3 spheres whose centers form another equilateral triangle. ### Step 4: Total Count of Surrounding Spheres By adding the spheres from both layers, we find: - 3 spheres from the upper layer + 3 spheres from the lower layer = 6 spheres total. ### Conclusion Thus, an octahedral void is surrounded by a total of **6 spheres**. ---
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