Q2 of 26 Page 1

What is the formula of a compound in which the element Y forms hcp lattice and atoms of X occupy 1/3rd of octahedral voids?

Since, Y forms hcp lattice, the no. of atoms of Y =


= 4


No. of octahedral voids in lattice = no. of atoms of Y


= 4


Since, X occupy 1/3rd of octahedral voids, then no. of atoms of X = 4 =


Formula of compound =


= XY3


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