Symmetry is the repetition of_when a crystal rotates at 360 along its axis.
Correct answer: D. All of these
- A. Faces
- B. Edges
- C. Angles
- D. All of these
Explanation
When there is a repetition of "faces", "edges", and "angles" in a crystal when it rotates 360 degrees along its axis the crystal is symmetrical so the answer is D.
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About Crystalline Solids
Crystalline solids contain particles arranged in a regular repeating lattice described by a unit cell. Their study includes coordination number, packing efficiency, density, anisotropy, cleavage, polymorphism and common crystal systems, along with ionic, molecular, covalent network and metallic crystals. Crystalline order differs from the random arrangement of amorphous solids.
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