In a body-centred and face-centred arrangement of atoms of an element, what will be the number of atoms present in respective unit cells. Justify your answer with calculation.

The total number of tetrahedral voids in the face-centred unit cell is-

The volume of atom present in a face-centred cubic unit cell of a metal ( r is atomic radius ) is

What is the total number of atoms per unit cell in a face-centred cubic (fcc) crystal structures ?

What is the number of particles per unit cell in a face-centred cubic lattice-

An element forms a body centred cubic lattice of edge length 288 pm density of the element 7.2gm cm^(-3) . Calculate the number of atoms and unit cell in 208gm of that element.

(i) Which type of semiconductor is sillicon having arsenic as impurity? (ii) An elements (density = 7.2g*cm^(-3) ) crystallises in a body-centred cubic structure having its cell edge length 2.88Å. Calculate the number of atoms and the number of unit cells present in 156g of the element.

NaCl has face-centred unit cell. In its crystal, the number of Cl^(-) ions present in contact with a Na^(+) ion is-

In a body centred cubic cell, an atom at the body of centre is shared by: