Question

For K+ and Br find the radius ratio of K+ ion to Br ion and on this basis predict (5) the shape of crystal geometry of KBr. Draw a diagram indicating the arrangement of K+ and Br ions in the crystal of KBr.? Please Give me full solution

Answer 1

KBr crystallizes in the same cubic lattice as Nacl and that is FCC .
Co-ordination Number =6
radius ratio= 0.414 -0.732
shape = octahedral