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CBSE Class 12-science Answered

A FCC lattice cube is formed by atoms A and B. If atom A is present at the corner of the cube and the atom B at the faces of the cube. Find out the formula of the compound?
Asked by Topperlearning User | 17 Jun, 2016, 10:55: AM
answered-by-expert Expert Answer

Contribution of atom A at eight corners of the cube =   begin mathsize 10px style 1 over 8 cross times 8 equals 1 space atom end style

Contribution of atom at each face =  begin mathsize 10px style 1 half end styleatom
Contribution of atom B at six faces of the cube = begin mathsize 10px style 1 half cross times 6 equals 3 space atoms end style
Formula of the compound = AB3
Answered by | 17 Jun, 2016, 12:55: PM

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