Solids can be divided into two types : crystalline and amorphous. The first and most common type, known as crystalline or amorphous, has regular crystal lattices, or long-range order. These solids are stabilized by the regular pattern of their atoms. Their characteristic properties include distinct melting and boiling points, regular geometric shapes, and flat faces when cleaved or sheared. Some examples include sodium chloride, ice, metals, and diamonds.
Amorphous solids are rigid, but they lack repeated periodicity or long-range order in their structure. These substances do not show a sharp distinction between the solid and liquid states. Amorphous solids lack a characteristic geometry, have identical properties along all axes.
Amorphous solids include both natural and artificial materials. The most frequently cited example of an amorphous solid is glass. Additional examples include thin film lubricants, metallic glasses, polymers, and gels. Most classes of solid can be found in an amorphous form. Amorphous solids can be prepared in a variety of ways, such as rapidly cooling from the molten state
Amorphous solids are rigid, but they lack repeated periodicity or long-range order in their structure. These substances do not show a sharp distinction between the solid and liquid states. Amorphous solids lack a characteristic geometry, have identical properties along all axes.
Amorphous solids include both natural and artificial materials. The most frequently cited example of an amorphous solid is glass. Additional examples include thin film lubricants, metallic glasses, polymers, and gels. Most classes of solid can be found in an amorphous form. Amorphous solids can be prepared in a variety of ways, such as rapidly cooling from the molten state
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