Hexagonal close packing has the arrangement pattern of particles as:
Correct answer: A. ABA
- A. ABA
- B. ABC
- C. ABCD
- D. None of these
Explanation
a) ABA:The ABA arrangement pattern is known as the hexagonal close packing (HCP) structure. In this pattern, the layers of particles are arranged in an alternating sequence of two types of layers: A and B. The A layer is directly on top of the B layer, and the next A layer is aligned with the first A layer. This arrangement results in a close packing of particles in a hexagonal pattern.
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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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