TS EAMCET 6-Aug-2021 Shift 1 Question Paper

In cubic lattice, B
atoms occupy corners
A atoms occupy face centres
Contribution of each atom (B) present at corner =1∕8⇒‌‌8×‌

1

8

=1
Contribution of each atom (A) present at centre of face
‌

1

2

×6=3
⏟‌3×‌3B⇒A3B