The coordination no. of fcc structure for metals is 12, since-(a) each atom touches 4 others in same layer, three in layer above and 3 in layer below.(b) each atom touches 4 others in same layer, 4 in layer above and 4 in layer below-(c) Each atom touches 6 others in same layer, 6 in layer above and 6 in layer below.(d) Each atom touches 3 atoms in the same layer, 6 in layer above and 6 in layer below.
saurabh kumar , 10 Years ago
Grade 12
