Distinguish Between
, Crystalline solids Amorphous solids
The constituent particles are arranged in a regular, The constituent particles are arranged in a short-range or
orderly pattern over a long range. random manner.
They have a definite geometric shape. They have an irregular and indefinite shape.
These solids are generally anisotropic, meaning their These are isotropic, meaning their physical properties are
physical properties vary with direction. the same in all directions, similar to liquids.
They have a definite and sharp heat of fusion. They do not have a definite heat of fusion.
They are pure solids. They are supercooled liquids.
They gradually soften over a range of temperatures and
They have sharp and well-defined melting points.
can be molded when heated.
E.g., Ice, NaCl, diamond E.g., Glass, rubber, plastics
, Crystalline solids Amorphous solids
The constituent particles are arranged in a regular, The constituent particles are arranged in a short-range or
orderly pattern over a long range. random manner.
They have a definite geometric shape. They have an irregular and indefinite shape.
These solids are generally anisotropic, meaning their These are isotropic, meaning their physical properties are
physical properties vary with direction. the same in all directions, similar to liquids.
They have a definite and sharp heat of fusion. They do not have a definite heat of fusion.
They are pure solids. They are supercooled liquids.
They gradually soften over a range of temperatures and
They have sharp and well-defined melting points.
can be molded when heated.
E.g., Ice, NaCl, diamond E.g., Glass, rubber, plastics
