1.4 classification of crystalline solid

   

Ionic solid  :- A solid substance which is formed by complete transformation of element that is called Ionic solid.

Ex:- NaCl , KCl , MgO , CaCl2 ,etc.

Covalent or Network solid:-  A solid substance which is form by sharing of electrons and have  a continuous network extending structure that is called Covalent or Network solid.

Ex:- Diamond, Graphite, Quartz, etc.

 

Metallic Solid :- Those type of solid substance which is form by attraction between metal to metal that is called Metallic Solid. These bonds are like huge molecular orbitals that span across the whole solid. This means the electrons in metallic solids are .delocalized.

Ex:- all metals and alloy.

Molecular Solid :- A solid substance which is formed by sharing of two or more than two electrons of same and different atoms that is called Molecular solid. (molecular solid’s structure are not like network).          

  Ex:- O2 , CO2 ,H2O , NH3 ,N2, etc.