Question

When the arrangements of atoms, ions or molecules is regular and periodic, such solids are
(A) Amorphous
(B) Crystalline
(C) both (a) and (b)
(D) none of these​

Answer 1

(B) Crystalline

Explanation:

A crystal or crystalline solid is a solid material whose constituents are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

Answer 2

Answer:

The correct answer will be -

(B) Crystalline

Explanation:

Crystalline Solids -

• The solids featuring highly ordered arrangements of their particles (atoms, ions, and molecules) in microscopic structures are called crystalline solids.
• These ordered microscopic structures make up a crystal lattice that accounts for the structure of the solid at any given point.
• Some examples are quartz, calcite, etc.

Amorphous solids -

• Amorphous solids are any non-crystalline solids in which the atoms and molecules are not organized in a definite lattice pattern.
• Such solids include glass, plastic, and gel.

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