There is a regular arrangement of particles in a crystalline solid that will result in a well-defined crystal array. In an amorphous solid, there is no regular arrangement of particles.
|Amorphous solids||Crystalline solids|
|This is the shapeless, disordered, and irregular arrangement of the constituent particles of a solid.||Crystalline solids have a definite shape with orderly arranged ions, molecules or atoms in a three-dimensional pattern.|
|Amorphous solids do not have definite melting points||Crystalline solids, on the other hand, have a sharp melting point.|
|Amorphous is called isotropic because of similar physical properties from either direction.||Crystalline solids possess different electrical conductivity, thermal conductivity, refractive index and mechanical strength within a crystal.|
|Amorphous solids include glass, rubber and polymers.||Examples of a crystalline solid include NaCl, sugar and diamond.|