Co-ordination number: - The total
number of atom which is directly attached with one atom that is called co-ordination number.
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Co-ordination number
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1-Dimention
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2
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2-Dimention
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AAA –type 4, ABAB-type 6
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S.C.C.
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6
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B.C.C.
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12
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F.C.C.
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8
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Close packed Structure
The term "closest packed structures" refers to
the most tightly packed or space-efficient composition of
crystal structures (lattices). Imagine an atom in a crystal
lattice as a sphere. ... These arrangements are called closest packed
structures. The packing of spheres can describe the
solid structures of crystals.
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