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  •  In a face centered cubic lattice atoms A are at the corner points and atoms B at the face centered points. If atom B is missing from one of the face centered points, the formula of the ionic

 In a face centered cubic lattice atoms A are at the corner points and atoms B at the face centered points. If atom B is missing from one of the face centered points, the formula of the ionic compound is :

Option: 1

 AB2
 


Option: 2

A5B2
 


Option: 3

A2B3
 


Option: 4

A2B5


Answers (1)

best_answer

In an FCC lattice, let the formule be Ax by then x=\frac{1}{8}=1

and y=6\times \frac{1}{2}-\frac{1}{2}=\frac{5}{2} \therefore\: formula\: is\: AB_{\frac{5}{2}}\:or\:A_{2}B_{5}

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mansi

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