Bonding in Solids - mskropac.weebly.com€¦ · Have indistinct shapes because their structural units lack order. Example: Glass and rubber Amorphous Solids Tuesday, January 23, 18

Bonding in Solids

Tuesday, January 23, 18

Chemists often divide solids into two types:

Crystalline solids

Amorphous solids

Tuesday, January 23, 18

Have indistinct shapes because their structural units lack order.

Example: Glass and rubber

Amorphous Solids

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Have organized structural units and distinct shapes

Example: Garnet

Crystalline Solids

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Crystalline Solids

Chemists classify crystalline solids into five categories

Tuesday, January 23, 18

Crystalline Solids

Atomic Solids - Covalent Non-polarIndividual atoms held together by London Dispersion ForcesVery low melting and boiling pointsVery rare (Noble gases in solid state)

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Crystalline Solids

Molecular Solids- Covalent PolarStronger dipole-dipole forces giving them higher melting and boiling points then atomic

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Crystalline Solids

Network SolidsCovalently bonded to form 3D structures. Often form crystalline structures in carbon-based solids

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Crystalline Solids

Ionic SolidsArray of ions, arrange in a crystal lattice structure.

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Crystalline Solids

Metallic SolidsFree electrons pool around metal cations.Strong bonding leads to high boiling and melting points.

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