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 Jan, 2019, 01:59: PM

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, 
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 Varsha | 16th Jan, 2019, 03:52: PM