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If the positions of Na^(+) and Cl^(-) is...

If the positions of `Na^(+)` and `Cl^(-)` is:

A

unchanged

B

changes to `8:8` coordination from `6:6`

C

additivity of ionic radii for edge length is lost

D

none of the above

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If the positions of Na^(+) and Cl^(-) are interchanged in NaCl, having fcc arrangement of Cl^(-) ions then in the unit cell of NaCl

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Find the number of Na^(+) ions and Cl^(-) ions associated with each in a unit cell and NaCl .

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