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Amorphous and Crystalline Solids

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General Characteristics

Crystalline Solids: Molecular and Ionic Solids

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Amorphous and Crystalline Solids - Lesson Summary

Amorphous and Crystalline Solids
Based on the arrangement of its constituents, solids are broadly classified into two categories. They are crystalline solids and amorphous solids.

Crystalline solids:

Crystalline solids have an orderly arrangement of their constituent particles.
Crystalline solids have definite geometrical shapes.
Long-range order of arrangement of particles is present.
Thus a crystal is defined as a solid figure that has a definite geometrical shape, with flat faces and sharp edges.
EX: Quartz and sodium chloride.
A crystalline solid has a sharp melting point
Crystalline solids are anisotropic in nature.
If a crystalline solid is broken into pieces, the small constituents will have the same smooth and plane surfaces.
Crystalline solids have definite heat of fusion values
Crystalline solids show plane of symmetry, axis of symmetry and centre of symmetry.

Amorphous solids:

An amorphous solid consists of a number of constituent particles arranged in a random manner.
They do not have any definite geometry.
Short range order of arrangement of particles is present.
EX: Glass, rubber and plastics
These are also called as super-cooled liquids
Amorphous solids do not have sharp melting points.
Amorphous solids are isotropic in nature
Amorphous solid is broken into pieces; the small constituents will have irregular surfaces and intersect at random angles.
Amorphous solids do not have definite heat of fusion values
Amorphous solids do not show any symmetry. ffc iij kkg gdfgdfsg

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Amorphous and Crystalline Solids

Carbohydrates: Classification

d-Block: Complexes, Interstitial Compounds, Alloy Formation And Catalytic Properties

Packing Efficiency: hcp And ccp Lattice

Importance And Applications

Amorphous and Crystalline Solids - Lesson Summary

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Amorphous and Crystalline Solids

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CBSE - XII - Chemistry

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Looks like internet is slow. We have other options available for you. Please call our toll-free number 1800-419-1234 for help.

Amorphous and Crystalline Solids

Carbohydrates: Classification

d-Block: Complexes, Interstitial Compounds, Alloy Formation And Catalytic Properties

Packing Efficiency: hcp And ccp Lattice

Importance And Applications

Amorphous and Crystalline Solids - Lesson Summary

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