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In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms or molecules in a crystalline liquid or solid.
4
votes
Finding the atomic packing factor (APF) of Sodium Chloride and other FCC ionic compounds
Coming to question 1, that is, is your calculation correct?
Quoting from Wikipedia,
In solid sodium chloride, each ion is surrounded by six ions of the opposite charge as expected on electrostatic gr …