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Question:

Name the parameters that characterize a unit cell.

Answer:

 

A unit cell is the smallest repeating unit in space lattice which when repeated over and over again produces the complete space lattice. It represents the shape of entire crystal. The parameters which characterizes a unit cell are as follows:

1 Relative lengths (distance) of the edges along the three axis (a, b, c). These edges may or may not be equal.

2 Angle between the edges (α, β, γ).The angle α is between the edges b & c, angle β is between the edges c & a, and angle γ is between the edges a & b.


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