Question

A compound made up of elements ‘A’ and ‘B’ crystallises in a cubic close

packed structure. Atom A are present on the corners as well as face

centres, whereas atoms B are present on the edge-centres as well as

body centre. What is the formula of the compound?

Answer 1

A4B4 = AB is the formula

Answer 2

A atoms are present at corners and face centres.

B atoms are present at edge centres and body centre.

A=4,B=4

A:B=4:4 => A:B=1:1

Formula:

AB