Question

The intermetallic compounds `LiAg` crystallises in cubic lattice in which both lithium and silver have coordination number of eight ,the crystal class is
A. simple cubic
B. body centered cubic
C. face centred cubic
D. none of these cubic

Answer 1

Correct Answer - 2
Coordination number of eight is possible only in body centred cubic latter where each atom body centred of corners) is in direct touch with `8` other atoms,.In simple cubic lattice `CN` is `6` whilst in face centred cubic lattice `CN` is `12`.