Question

13. What is the formula of the compound if the unit cell of it contains atoms A, B and
and occupy the lattice points as shown?
A
0-B
-C​

Answer 1

Answer:

unit cell pata nahi bhai

Answer 2

Answer:

Explanation:

• A are present in corners so its 1

       there are 8 atoms in corners and this atoms are shared by 8 separate       lattice so unit cell=8 × 1/8= 1

• B are present at face centre so it is 3

      there are 6 atoms in face centre so and this atoms are shared by 2  separate lattice so unit cell=6 × 1/2= 3

• C is present in body centre so it is 1 as it is not shared by any other lattice.
• so formula = A₁B₃C₁