What is unit cell ? Write formula to calculate the density of a unit cell.

Define a unit cell

How is simple cubic unit cell formed ? Calculate the number of atoms in a simple unit cell.

The distance between the nearest neighbours of a body-centred cubic unit cell is equal to 0.866 times the edge length of the unit cell. What is the relation between the edge length and the radius of the constituent particle of this unit cell?

The metal calcium crystallises in fcc unit cell with a = 600 pm. Calculate the density of the metal if it contains 0.2% Schottky defects.

The metal calcium crystallizes in a face centred cubic unit cell with a = 0.556 nm. Calculate the density of the metal if it contains 0.1% Schottky defects

The metal calcium crystallizes in a face centred cubic unit cell with a = 0.556 nm. Calculate the density of the metal if it contains 0.2% Frenkel defect

Sodium crystallises in a cubic lattice and the edge length of the unit cell is 430 pm. Calculate the number of atoms in the unit cell. (Atomic mass Na = 23 amu, Density of Na = 0.9623 g cm^(-3) )

A compound having bcc geometry has atomic mass 70. Calculate the density of the unit cell if its edge length is 290 pm.

Methane crystallises in a cubic unit cell with a = 0.598 nm. Calculate the theoretical density of methane assuming Z = 1, 2 and 4. If the density of liquid methane is 0.466"g cm"^(-3) and assume that density of solid is the same as that of the liquid at a given temperature, predict which type of unit cell result?

Sodium crystallises in a bcc lattice having unit cell with an edge length of 4.29Å. Calculate the number of unit cells present in 2.3g of Na metal. Determine the number of atoms present in 1 cc of unit cell.