Question

14. The co-ordination number of BCC structure is __________________ . *
a)2
b)8
c)12
d)4
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Answer 1

Answer:

8

Explanation:

neighbor atoms or ions surrounding an atom or ion. For FCC and HCP systems, the coordination number is 12. For BCC it's 8. The ratio of atomic sphere volume to unit cell volume, assuming a hard sphere model.