Question

in ABAB... arrangement if an atom is placed in layer A then calculate number of atoms touching its adjacent B layers​

Answer 1

Answer:

6

Explanation:

atoms in layer B are fit into depressions of layer A and therefore atom placed in layer A  is in touch with 6 more atoms .and forms a regular hexagon .you can check the diagram from 12 ncert book ,ch - solid state pg no. 12

Answer 2

In ABAB arrangement if an atom is placed in layer A then 6 atoms will touch its adjacent B layers​.

Explanation:

• Let's suppose there are two layers A and B.
• Now If we place 6 atoms and make a layer A, then it will create three depressions.
• Now three atoms will b placed in these depressions to make a second layer i.e. B
• In this layer only one atome can be adjusted, because three atoms will create one depression.
• Thus in ABAB if an atom is placed in layer A then 6 atoms will touch its adjacent B layers​.