Solid State Tes...

If silver iodide crystallizes in a zinc blende structure with $${I}^{-}$$ ion forming the lattice, the fraction of tetrahedral void occupied by $${Ag}^{+}$$ ion is

Two metals A and B crystallize in $$bcc$$ and $$fcc$$ type structures. The ratio of number of atoms of A and B present in unit cell of their crystals is 

$$\alpha  \ne \beta  \ne \gamma  \ne {90^ \circ };$$  $$a \ne b \ne c$$, crystal system can have 

Rank of simple unit cell is:

What is the C.N. of a sphere in square packing in 2-D?

Two ions $${ A }^{ + }$$ and $${ B }^{ - }$$ have radii of $$0.88\overset { \circ  }{ A } $$ and $$2\overset { \circ  }{ A } $$ respectively. What will be the type of crystal?

Packing fraction in 2-D hexagonal packing is

Number of atoms per unit cell, if atoms are present at the corner of unit cell and 2 atoms at each body diagonal

The packing efficiency of a simple cubic crystal with an interstitial atom exactly fitting at the body center is:

A unit cell of diamond consists of ______.