The coordination number of metal crystallising in a hexagonal close packing is

Question

The coordination number of metal crystallising in a hexagonal close packing is (A) 12 (B) 4 (C) 8 (D) 6

Tardigrade Admin · Accepted Answer

Three consecutive layers of atoms in hexagonal close packed lattice is shown below: <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/8630512f7599a7f3f58849175a5eef42-.png" /> Atom X is in contact of 12 like atoms, 6 from layer B and 3 from top and bottom layers A each.

Q. The coordination number of metal crystallising in a hexagonal close packing is

12

4

8

6

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.

Q. The coordination number of metal crystallising in a hexagonal close packing is

12

4

8

6

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.

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.