Chapter 16 Solids The Crystalline State All true

The Crystalline State • All true solids are crystals.

Crystals • A crystal is a lattice structure formed by a repeating, three-dimensional pattern

Amorphous Solids • An amorphous solid lacks an orderly repeating lattice structure.

Obsidian is a volcanic glass, meaning that the minerals from which it formed did

Types of Crystals • The type of crystal is determined by the particles and

Types of Crystals 1. 2. 3. 4. Molecular Crystals Ionic Crystals Metallic Crystals Network

Ulexite “The TV Stone” • When viewed parallel to the fibers, Ulexite transmits light

Homework Worksheet #34 “Temperature and Particle Motion” (due tomorrow). Worksheet: Chapter 15 (due tomorrow).

Slides: 21

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Chapter 16 Solids

The Crystalline State • All true solids are crystals.

Crystals • A crystal is a lattice structure formed by a repeating, three-dimensional pattern of atoms, ions, or molecules.

Amorphous Solids • An amorphous solid lacks an orderly repeating lattice structure.

Crystals vs. Amorphous Solids

Obsidian is a volcanic glass, meaning that the minerals from which it formed did not have time to crystallize due to rapid cooling.

Crystals vs. Amorphous Solids

Types of Crystals • The type of crystal is determined by the particles and attractive forces that make it up.

Types of Crystals 1. 2. 3. 4. Molecular Crystals Ionic Crystals Metallic Crystals Network Crystals

Molecular Crystal

Ionic Crystal

Metallic Crystal a

Network Crystal (Macromolecule)

Fiber Optics

Ulexite “The TV Stone” • When viewed parallel to the fibers, Ulexite transmits light in a similar fashion to fiber optics. It is this property that has given rise to it nickname of "TV" stone.

Homework Worksheet #34 “Temperature and Particle Motion” (due tomorrow). Worksheet: Chapter 15 (due tomorrow). Worksheet: Chapter 16 (due in two days).