|
Crystalline solids |
Amorphous solids |
|
They have long range order. |
They have short
range order. |
|
They have definite melting
point |
Not have definite melting
point |
|
They have a definite
heat of fusion |
Not have definite heat of fusion |
|
They are rigid and incompressible |
Not be compressed to any appreciable extent |
|
They are given cleavage i.e. they break into two pieces
with plane surfaces |
They are given
irregular cleavage i.e. they break into two pieces with irregular surface |
|
They are anisotropic because of these
substances show different property in
different direction |
They are isotropic because of these
substances show same property in all
directions |
|
There is a sudden change
in volume when it melts. |
There is no sudden change
in volume on melting. |
|
These possess
symmetry |
Not possess
any symmetry. |
|
These
possess interfacial angles. |
Not possess
interfacial angles. |
