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What is the formula of a compound in which the element Y forms hcp lattice
and atoms of X occupy 2/3rd of tetrahedral voids

Asked by upasana.sobti 16th January 2019, 1:59 PM
Answered by Expert
Answer:
The no. of atoms in hcp lattice, Y = 6
 
Tetrahedral void = 2× 6 
 
                        = 12
 
2/3 of these voids are occupied by X, 
 
Therefore,
 
12 cross times 2 over 3 space equals space 8

therefore space straight X space equals space 8 space space space straight Y space equals space 6
 
So the formula of a compound formed is X4Y3.
Answered by Expert 16th January 2019, 3:52 PM
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