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How does the pattern of atomic arrangement in amorphous materials differ from that in crystalline materials?
a) Amorphous materials have a long-range ordered pattern, while crystalline materials have a random arrangement.
b) Amorphous materials have a random atomic arrangement with no long-range order, while crystalline materials have a repeating, orderly pattern.
c) Both amorphous and crystalline materials have identical atomic arrangements.
d) Amorphous materials have a highly regular repeating pattern, while crystalline materials have a random arrangement.

Sagot :

Anshikaaryakumaridn

Answer:

b) Amorphous materials have a random atomic arrangement with no long-range order, while crystalline materials have a repeating, orderly pattern.

Explanation:

Amorphous solids are non-crystalline substances that do not possess a characteristic geometrical arrangement. They also do not have a fixed melting point. Despite their name, amorphous materials do display an orderly arrangement of atoms that may extend up to a few Angstrom units. Such structures are called crystallites. Amorphous solids lack distinct edges and are therefore non-crystalline.

Amorphous solids lack a long-range arrangement of atoms. In addition, they do not have any characteristic geometry. They are identical in all their properties along all their axes. Because of this, they are impossible to identify by their structure as a crystalline one. The distinction between amorphous and crystalline solids is very useful when describing the properties of different materials.

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