In a crystalline solid, the atoms A and B are arranged as follows.
In a crystalline solid, the atoms A and B are arranged as follows :
(a) Atoms A are arranged in ccp array.
(b) Atoms B occupy all the octahedral voids and half of the tetrahedral voids.
What is the formula of the compound ?
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No. of A (ccp) = 4
No. of B = octahedral voids + Tetrahedral/2
=4+8/2
=4
A : B therefore, formula of the compound is AB2
4 : 8
1 : 2
AB2
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