The co-ordination number of FCC structure for metals is 12, since :

see full answer

Take the SCORE scholarship exam from home and compete for scholarships worth ₹1 crore!*

An Intiative by Sri Chaitanya

each atom touches 6 others in same layer, 3 in layer above and 3 in layer below

each atom touches 4 others in same layer, 4 in layer above and 4 in layer below

each atoms touches 4 others in same layer, 3 in layer above and 3 in layer below

each atom touches 3 others in same layer, 6 in layer above and 6 in layer below

answer is B, C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

The co-ordination number of FCC structure for metals is 12. This is because;

Each atom touches 4 others in same layer, 4 in layer above and 4 in layer below.

Each atom touches 6 others in same layer, 3 in layer above and 3 in layer below.

Watch 3-min video & get full concept clarity