Question

discuss one and two dimensional close packing in solids​

Answer 1

Close packing in crystalline solids in two dimensions:

Thus, if we call the first row as “A” type row, the second row being arranged the same as the first one, is also of the “A” type. In such an arrangement each sphere is in contact with four other spheres. Hence, it has a coordination number equal to four.

Answer 2

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Close packing in crystalline solids in two dimension:

Thus, if we call the first row as “A” type row, the second row being arranged exactly the same as the first one, is also of “A” type. In such an arrangement each sphere is in contact with four other spheres. Hence, it has a coordination number equal to four.

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