Question

a compound is formed by 2 elements x and y .atom of the element y make ccp and those of the element x occupy all the octahedral voids . what is the formula of the compound

Answer 1

y atoms are  at the ccp 
so no. of y=4 and
x =1 becz octahedral voids are N in no.
the formula is XY4.

Answer 2

${\huge{\underline{\underline{\mathcal{\red{♡ANSWER♡}}}}}}$

• ⭐.. The ${ccp}$ lattice is formed by the element ${Y}$.
• ⭐.. The number of octahedral voids generated would be equal to the number of atoms of ${Y}$ presebt in it.
• ⭐..Since all the octahedral voids are occupied by the atoms of ${X}$ their number would also be equal to that of the element ${Y}$.
• ⭐... Thus, the atoms of elements${X}$and${Y}$ are present in equal number or 1:1 ratio, Therefore the formula of compound is ${XY}$.