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KF has ccp structure. Calculate the radius of the unit cell if the edge length of the unit cell is 400 pm. How many `F^(-)` ions and octahedral voids are there in the unit cell ? |
Answer» For ccp unit cell, radius (r) `=(sqrt2a)/(4)` `=(sqrt2xx(400"pm"))/(4)=(1.414xx(400"pm"))/(4)` There are four `F^(-)` ions and four octahedral voids per unit cell. |
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