The edge length of a face centered unit cubic cell is 508 pm. If the radius of the cation is 110 pm, the radius of the anion is:
1. 144 pm
2. 398 pm
3. 288 pm
4. 618 pm

Zn converts its melted state to its solid state. It has an HCP structure. The number of the nearest atom is:
1. 6
2. 8
3. 12
4. 4

Copper has a face-centered cubic (fcc) lattice with interatomic spacing equal to 2.54Å. The value of the lattice constant for this lattice is:

1. 3.59Å

2. 2.54 Å

3. 1.27 Å

4. 5.08 Å

In a face –centered cubic lattice, a unit cell is shared equally by how many unit cells:

1. 4

2. 2

3. 6

4. 8