A given metal crystallizes out with a cubic structure having an edge length of 361 pm. If there are four metal atoms in one unit cell, the radius of one atom is:
1. 40 pm
2. 127 pm
3. 80 pm
4. 108 pm
The number of carbon atoms per unit cell of a diamond is:
1. 8
2. 6
3. 1
4. 4
A metal crystallizes with a fcc lattice. The edge of the unit cell is 408 pm. The diameter of the metal atom is:
1. 288 pm
2. 408 pm
3. 144 pm
4. 204 pm
The number of octahedral void(s) per atom present in a cubic close-packed structure is:
1. 1
2. 3
3. 2
4. 4
If the lattice parameter for a crystalline structure is 3.6 Å, then the atomic radius in fcc crystal is:
1. 1.81 Å
2. 2.10 Å
3. 2.92 Å
4. 1.27 Å
Silicon gives p-type of semiconductor on doping with:
1. Germanium.
2. Arsenic.
3. Selenium.
4. Boron.
For a cubic crystal structure, which one of the following relations indicating the cell characteristic is correct?
1.
2.
3.
4.