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Find the planar density of (1 -1 -1) and (1 2 -2) planes of BCC structure. The radius of an atom in the structure is

Find the planar density of (1 -1 -1) and (1 2 -2) planes of BCC structure. The radius of an atom in the structure is 0.114 nm. Make necessary sketches and show calculations related to solutions.

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