Cleavage Plane appears when a crystal is _.
Correct answer: B. Broken
- A. Melted
- B. Broken
- C. Heated
- D. Cooled
Explanation
A cleavage plane appears in a crystal when it is subjected to mechanical stress along a specific direction or plane that corresponds to a weak bonding region within the crystal lattice. This stress can cause the crystal to split or break along the plane of weakest bonding, resulting in a smooth, flat surface known as the cleavage plane.
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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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