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| Introduction |
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| Sodium
chloride is a specific example of a common structure type known as the
"halite" structure. This lattice may also be viewed as a FCC lattice of
anions
(Z = 4), with smaller cations occupying all Oh holes
(or vice versa). By identifying and counting all of the Oh
holes, it can be shown that the number of cations wholly within the unit
cell is also 4.
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