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Lithium iodide crystal has a face cen...

Lithium iodide crystal has a face centred cubic unit cell . If the edge length of the unit cell is 550 pm , determine the ionic radius of ` I^(-)` ion.

A

`(4)/(sqrt(3)) r`

B

`(4)/(sqrt(2))r`

C

`2r`

D

`(sqrt(3))/(2)r`

Text Solution

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The correct Answer is:
B
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