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A compound is formed by two …

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A compound is formed by two elements X and Y.Atoms of the element Y(as anions)make ccp and those of the element X(as cations) occupy all the octrahedral voids.What is the formula of the compound?
  • 1 answers

Gaurav Seth 5 years, 5 months ago

Since, atoms of Y forms CCP (cubic close packing) which is analogous to FCC (face centered cubic)

So, effective number of atoms of Y in lattice =4

Number of octahedral voids = Number of atoms forming CCP =4

So, effective number of atoms of X in the lattice =4

Now, X:YX:Y

          4:4          1:1

So, the formula of the compound is XY

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