crystal structuresrev1

crystal structuresrev1 - b 2 = a 2 + a 2 c 2 = a 2 + b 2 =...

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a c b a a b r r r a Crystalline Lattices: Note: Views are expanded for clarity Simple (Primitive) Cubic Structure (SCC): One atom in unit cell (1/8 x 8) Coordination number = 6 (52.36% efficient) a = 2r Body-centered Cubic (BCC): Two atoms in unit cell (1 + 8 x 1/8) Coordination number 8 (68.02% efficient)
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Unformatted text preview: b 2 = a 2 + a 2 c 2 = a 2 + b 2 = 3a 2 c = (3) 1/2 a = 4r a = 4r/ (3) 1/2 Face-centered Cubic (FCC): Four atoms in unit cell (8 x 1/8 + 6 x 1/2) Coordination number 12 (74.04% efficient) b = 4r b 2 = a 2 + a 2 16r 2 = 2a 2 a = (8) 1/2 r b a...
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