In a face centered arrangement of A and B atoms. Where A atoms are at the corners of the unit cell and B atoms are at the face centers. For each unit cell, one A atom is missing from a corner position and one B atom is missing from one face position. The simplest formula of the resulting compound will be:
Answers
Answer:
Correct option is D)
In a face centred cubic arrangement of A and B atoms in which 'A' atoms are at the corners of the unit cell.
There are total 8 corners and each contributes one eight to the unit cell.
One of the 'A' atom is missing from one corner in unit cell.
So there are 7 'A' atoms with total contribution 7×
8
1
=
8
7
.
'B' atoms are at the face centres. There are six face centres. Each contributes one half to the unit cell.
Total contribution =6×
2
1
=3
A:B=
8
7
:3=7:24
The simplest formula of compound is A
7
B
24
Hence, the correct option is D.
Answer:
In a face centred cubic arrangement of A and B atoms in which 'A' atoms are at the corners of the unit cell.
There are total 8 corners and each contributes one eight to the unit cell
The simplest formula of compound is A7B24
But I've 2nd one place :(