Solid State Tes...

The effective radius of an iron atom is $$1.42\ \mathring A$$. It has FCC structure. Calculate its density (in g.cm$$^{-3}$$) if it is given that the atomic mass of $$Fe$$ is $$56$$ amu.

An element A (atomic weight = $$100$$ amu) having bcc structure has unit cell edge length of $$400$$ pm. Calculate the density (in g/cc) of A?

The interstital hole is called tetrahedral because ?

$$TiO_2$$ is well known example of :

The packing factor for a simple cubic lattice is :

$$KF$$ crystallizes in the $$NaCl$$ type structure. If the radius of $$K^{+}$$ ions is $$132$$ pm and that of $$F^{-}$$ ion is $$135$$ pm , what is the shortest $$K-F$$ distance?

In FCC unit cell, the percentage of unit cell not occupied by atoms is :

Calculate the density of diamond from the fact that it has a face-centered cubic structure with two atoms per lattice point and unit cell edge length of $$3.569 \times 10 ^{-8}$$ cm.

Which one of the following schemes of ordering closed packed sheets of equal sized spheres do not generate close packed lattice?

The volume of a crystal in BCC structure having N atoms is :