Metal defects are also known as colour defects. It has been observed that if a crystal of NaCl is heated...
Frenkel defects arise when an ion occupies an interstitial position between the lattice points.
It is...
Ideally, a perfect crystal has the same unit cell and contains the same lattice points throughout the...
An ionic crystal contains N ions in which the removal of n cations and n anions from the interior of...
What is the Bragg equation?
Bragg pointed out that unlike the reflection of ordinary light, the reflecting...
The units have positively and negatively charged ions called Ionic crystals.
The units having lattice...
What are Covalent crystals?
Covalent crystals in which the units are in atoms.
The lattice in covalent...
What are Molecular crystals?
Molecular crystals in which the units occupying the lattice points are molecules.
The...
There are three different types of symmetries which are possible in a crystal. A crystal may have different...
There are various types of Symmetry; here, three Symmetry are described: (i) Plane of Symmetry, (ii)...