Question

A compound is formed by two elements, M and N . The element N forms CCP and atoms of M occupy 13 rd of tetrahedral voids . What is the formula of the compound?

Answer 1

here ratio of M and N is
== =================1/3:1
======<==<=<<<<========1/3

so,
M(1)N(3)
formula is

MN3

Answer 2

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

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Let the number of atoms of the element N = n

Number of tetravalent voids = 2n

It is given that the atoms of element M occupy 1/3 of the tetrahedral voids.

So that the number of atoms of M = (1/3) × 2n

Ratio of the number of atoms of M and N

M:N =2n/3:n

Multiplying the 3 and divide by n we get

M:N = 2:3

Hence, the formula of the compound is M2N3 .

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