Question

Second nearest neighbour in CsCl solid

A) 8
B) 6
C) 16
D) 10​

Answer 1

Second nearest neighbor in CsCI solid is 6

Answer 2

Answer:

six

EXPLANATION:There are six ions of the same charge from a given ion at a distance of ∛r where r is the distance between the anion and cation (e.g., rCs^+ + rCl^-). There are six opposite charge in next-nearest contact, directly through the six faces of the cube at a distance of a where a is the side of the unit cell.

From Pythagoras the body diagonal of the unit cell is ∛a = 2r hence a = (2/∛ r) = 1.15r