Wood is crystalline or amorphous?
Answers
Wood is a Amorphous substance
Crystalline is an adjective that describes the periodic translational ordering of atoms or molecules within a solid. The atoms or molecules form a three-dimensional arrangement within a single repeating unit called a unit cell. The unit cell structure repeats in all directions at regular spacing, filling a regular three-dimensional grid called a lattice. A high degree of this ordering, or crystallinity, is the property required for a solid to be classified as a crystal.
Crystalline solids can be of the following types, depending on the nature of bonding between unit cells within the lattice:
Metallic
Ionic
Network (extended covalent)
Molecular
Amorphous means to have no consistent form. When talking about solids, amorphous is the opposite of crystalline. Whereas a crystalline solid is composed of structural patterns, an amorphous solid is not, and has a somewhat unpredictable structural composition. The atoms in an amorphous solid are organized in an irregular fashion.
Crystalline solids include rocks, wood, paper and cotton. These solids are made up of atoms arranged in a definite pattern. When crystalline solids are heated, the change to liquid, known as melting, is sharp and clear. Amorphous solids include rubber, glass and sulphur.
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