What is the coordination number of an atom for an element crystallizing with a cubic lattice? Ca...

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What is the coordination number of an atom for an element crystallizing with a cubic lattice? Calculate the corresponding coordination number for the simple, fcc and bcc lattices:
(a) \( 12 \mathrm{sc} ; 12 \mathrm{fcc} ; 8 \mathrm{bcc} \)
(b) \( 6 \mathrm{sc} ; 14 \mathrm{fcc} ; 8 \mathrm{bcc} \)
(c) \( 8 \mathrm{sc} ; 12 \mathrm{fcc} ; 6 \mathrm{bcc} \)
(d) 6 sc; 12 fcc; 8 bcc
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