Crystalline materials, characterized by a highly ordered, repeating atomic arrangement within a lattice, give rise to:
• Sharp melting and boiling points: Uniform atomic arrangement and bonding lead to distinct, defined phase transition temperatures.
• Periodic arrangement of atoms: Atoms are organized in a consistently repeating pattern, fundamental to their crystalline nature.
In contrast, amorphous materials exhibit isotropic properties, meaning their characteristics are uniform in all directions.