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Question
Which of the following describes hexagonal closed packed arrangement of spheres?
Which of the following describes hexagonal closed packed arrangement of spheres?
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Solution
The correct option is D ABA BAB .....
ABA BAB describes a hexagonal closed packed arrangement of spheres.
Each sphere is in contact with six spheres. The coordination number is 6.
The centres of six spheres surrounding any sphere are at the corners of a regular hexagon.
Hence, the arrangement is called hexagonal close packing.
Successive rows are arranged in such a way that the crests of the spheres of one row are placed into depression or troughs formed between adjacent spheres of the next row.
Therefore, option C is correct.
ABA BAB describes a hexagonal closed packed arrangement of spheres.
Each sphere is in contact with six spheres. The coordination number is 6.
The centres of six spheres surrounding any sphere are at the corners of a regular hexagon.
Hence, the arrangement is called hexagonal close packing.
Successive rows are arranged in such a way that the crests of the spheres of one row are placed into depression or troughs formed between adjacent spheres of the next row.
Therefore, option C is correct.
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