Question

Give 10 examples of amorphous solids and crystalline solids.

Answer 1

Hint: Solids are the substances that are rigid with definite mass and shape. They have strong intermolecular forces of attraction as the atoms are close to each other. Solids are of two types based on arrangement of atoms. They are amorphous solids and crystalline solids. Amorphous solids have a short range order of arrangement; while crystalline have a long range order of atoms.

Complete answer:
Solids substances have a definite mass and volume with closely packed atoms. These can be classified as amorphous and crystalline.
Amorphous solids contain the arrangement of particles in short range order, meaning they have a regular pattern for short distances.
While crystalline solids contain a long range order of arrangement of particles, which is the regular arrangement can be seen for a longer distance and they have a characteristic geometrical shape.
There are various substances and compounds that are classified under amorphous and crystalline solids. Examples are:
Amorphous solids: glass, rubber, plastic, quartz glass (silica), polyurethane, Teflon, fiberglass, PVC (poly vinyl chloride), cellophane, thin film lubricants, chalk.
Crystalline solids: sodium chloride (NaCl), potassium sulfate ${{K}_{2}}S{{O}_{4}}$, potassium nitrate $KN{{O}_{3}}$, naphthalene, benzoic acid, copper, diamond, quartz, sugar, rock.
Hence, the examples of amorphous and crystalline solids are explained as above.

Note:
The amorphous and crystalline solids differ in the property of isotropic and anisotropic respectively. When cleaved into two pieces amorphous solids have irregular surfaces, while crystalline solids have regular surfaces. There may be instances when amorphous solids convert into crystalline due to crystallization, example some old glass objects become milky due to change from amorphous to crystalline.