Question

The co-ordination number of a metal crystallising
in a hexagonal close packed strcuture is
(a) 12 (b) 4
(c) 8 (d) 6

Answer 1

Answer:

Heyaa✌️✌️

Correct option (A) 12 .

Three consecutive layers of atoms in hexagonal close packed lattice is shown below:

Atom X is in contact of 12 like atoms, 6 from layer B and 3 from top and bottom layers A each.

Hope it helped you.

Answer 2

Answer :- Option A) 12..