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Feel free to ask me a question and I will answer.

 

 

"The metal indium forms tetragonal crystals. The unit of structure is a rectangular parallelepiped, with edges a = 3.24 A, b = 3.24 A, and c = 4.94 A. There are two atoms in the unit of structure, with coordinates 0,0,0 and 0.5,0.5,0.5."

 

(a)Calculate distances from each atom to its twelve nearest neighbors; note that four are at one distance, and eight at another distance.

 

(b)Show that if the axial ration were equal to 1.414, the twelve distances would be equal.

 

© What is the relation between the unit of structure with this axial ratio (1.414) and the cubic unit of structure described in the text for cubic closest packing?

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"The metal indium forms tetragonal crystals. The unit of structure is a rectangular parallelepiped, with edges a = 3.24 A, b = 3.24 A, and c = 4.94 A. There are two atoms in the unit of structure, with coordinates 0,0,0 and 0.5,0.5,0.5."

 

(a)Calculate distances from each atom to its twelve nearest neighbors; note that four are at one distance, and eight at another distance.

 

(b)Show that if the axial ration were equal to 1.414, the twelve distances would be equal.

 

© What is the relation between the unit of structure with this axial ratio (1.414) and the cubic unit of structure described in the text for cubic closest packing?

Rain Check
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