Question

A compound formed by two elements `M` and `N`. Element `N` forms ccp and atoms of `M` occupy `1//3rd` of tetrahedral voids. What is the formula of th compound?

Answer 1

Let the number of N atoms in ccp is x
number of tetrahedral voids = 2 x
number of M atoms `=(1)/(3)xx2x`
`("Number of N atoms ")/("number of M atoms ")=(3x)/(2x)=(3)/(2)`
SO , the formula of the compound is `M_(2)N_(3)`