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1.
In a face centred cubic cell, an atom at the face centre is shared by :
2.
Extremely pure samples of 
and 
are non-conductors, but their conductivity increases suddenly on introducing ....in their crystal lattice.
and are non-conductors, but their conductivity increases suddenly on introducing ....in their crystal lattice.
3.
Iodine crystals are :
4.
In the face centred cubic lattice, atom A occupies the corner positions and atom B occupies the face centre positions. If one atom of B is missing from one of the face centred points, the formula of the compound is
5.
Which compound has highest lattice energy?
6.
The intermetallic compound 
has a cubic crystalline structure in which each 
atom has 8 nearest neighbor silver atoms and 
. What is the type of unit cell?
has a cubic crystalline structure in which each atom has 8 nearest neighbor silver atoms and . What is the type of unit cell?
7.
Bragg's equation is :
8.
Potassium has a bcc structure with nearest neighbour distance 4.52 
. Its atomic weight is 39. Its density will be :
. Its atomic weight is 39. Its density will be :
9.
Lithium forms body centred cube structure. The length of the side of its unit cell is 351 pm. Atomic radius of the lithium will be :
10.
A metallic element has a cubic lattice. Each edge of the unit of cell is 
The density of the metal is 2.5 g 
The unit cells in 200 g of metal are
The density of the metal is 2.5 g The unit cells in 200 g of metal are