A crystal has an ordered arrangement of constituent particles: Define the term unit cell.

A crystal has an ordered arrangement of constituent particles: Calculate the number of atoms in simple cubic and body centred unit cells.

A crystal has an ordered arrangement of constituent particles:Copper crystal has a' face centred cubic lattice structure. Its density Is 8.93gcm^-3 . What is the length of the unit cell ? Atomic mass of copper is 63.5 gmol^-1 .

Which of the following is not a characteristic of a crystalline solid? i) Definite heat of fusion ii) Isotropic nature iii) A regular ordered arrangement of constituent particles. iV) A true solid

Based on the nature of order present in the arrangement of the constituent particles, solid are classified into two crystalline and amorphous. List out any four points of difference between crystalline and amorphous solids.

Based on the nature of order, present in the arrangement of the constituent particles, solids are classified into two, crystalline and amorphous. List out any four points of difference between crystalline end amorphous solids. b) Alist of solids are given below : Quartz, glass, iodine, ice. From this, identify crystal (s) i) having sharp melting point. ii) which is/are isotropic

In CaF2 crystal, 'Ca^2+'. îons are present in fcc arrangement. How many 'F-' -ions are present in the unit cell?

On the basis of nature of constituent particles,crystals are classified into four types. Which are they?

On the basis of nature of constituent particles,crystals are classified into four types. Can you say whether Iodine can be written as an example of ionic crystal? Why?

On the basis of nature of constituent particles ,crystals are classified into four types. In which type does diamond belongs to? Why?

A substance 'A' crystallizes in fcc lattice. Calculate the number of atoms present per unit cell of 'A'.