Which one of the following statements is incorrect for HCP packing arrangement in 3D?
The Coordination no. is 12
It has 74% packing efficiency
All the Octahedral voids are fully present inside the unit cell
All the Tetrahedral voids are fully present inside the unit cell.

How many number of tetrahedral voids are completely inside the HCP unit cell

How many number octahedral voids are effectively inside an HCP unit cell

Total number of octahedral voids present per unit cell of ccp unit cell is

Show that in a cubic close packed structure, eight tetrahedral voids are present per unit cell.

Show that in a cubic close packed structure eight tetrahedral voids are present per unit cell .

The number of tetrahedral voids present on each body diagonal ccp unit cell is

How many octahedral and tetrahedral holes are present per unit cell in a face centred cubic arrangement of atoms ?

Which of the following statements is/are correct about hexagonal close packing ? 1. The coordination number is 8 2. It is ABAB type packing in which third layer is aligned with the first layer 3. Be, Mg, Mo etc. are found to have hcp structure 4. In hcp, atoms occupy 74% of the available space

Which of the following given statement(s) is/are correct for both fluorite and antifluorite structures? (i) coordination number of cation is 8 (ii) Number of formula unit is one unit cell is 4 (iii) 100% tetrahedral voids are occupied (iv) Radius ratio of cation and anion is 0.20

It was found that in 30 unit cells of ZnS, four atoms are of trivalent metal. How many vacant tetrahedral voids are present in 30 unit cells of ZnS?