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How many sodium ions and chloride ions a...

How many sodium ions and chloride ions are present in a unit cell of sodium chloride ?

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`4 Na^+ , 4 Cl^(-)`
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For a crystal of sodium chloride, state: (i) The type of lattice in which it crystallizes. (ii) The coordination number of each sodium ion and chloride ion in the crystal lattice. (iii) The number of sodium ions and chloride ions present in a unit cell of sodium chloride. (iv) The structural arrangement of the sodium chloride crystal.

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