A hole that is located in the center of the face-centered cubic unit cell and as a shared one in the middle of each edge is called a(n) _____ hole.

Question

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A hole that is located in the center of the face-centered cubic unit cell and as a shared one in the middle of each edge is called an octahedral hole. This hole is named for its geometry, as it resembles an octahedron (a shape with eight faces, each of which is an equilateral triangle). The octahedral hole is a common type of hole in crystal structures, and it is often occupied by cations (positively charged ions) in ionic compounds.

A Hole That Is Located in the Center of the Face-Centered