KVPY SX SB Exam 2016 Question Paper

Question : 56 of 120

Marks: +1, -0

A unit cell of calcium fluoride has four calcium ions. The number of fluoride ions in the unit cell is

Solution:

No. of

F^{–}

will be equal to eight since for one

Ca^{+2}

there should be two

F^{–}

ion.

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