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24 Cards in this Set
- Front
- Back
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Metallic Solids |
Held together by a sea of collectively shared electrons |
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Ionic solids |
Sets of Cations and Anions mutually attracted to one another |
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Covalent Network Solids |
Joined by an extensive network of covalent bonds |
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Molecular Soilds |
Discrete molecules held together by weak forces |
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Polymers |
Long chains of atoms held together by covalent bonds Chains can connect by weak forces |
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Nanomaterials |
crystalline compounds withthe crystals on the order of 1–100 nm |
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Crystalline solids |
Regular repeating pattern of atoms |
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Amorphous |
Classified by a lack of order in the arrangement of atoms |
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Lattice Points |
Positions that define the overal structure fo the crystalline compound |
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Lattice vectors |
Connect points and define the unit cells |
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Primate lattices |
Atoms only in the lattice points (1 atoms) |
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Face centered lattices |
At corners and one per face (4 atoms total) |
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Body centered cubic lattice |
Lattice points at corners and in the center (2 atoms) |
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Motif |
Groups of atoms that define the overall structure |
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Alloys |
Materials that contain more than one element and have characteristic properties of metals |
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Substitutional alloys |
Second element takes the place of a metal atom |
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Interstitial alloys |
Second element fills a space in the lattice of metal atoms |
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Heterogeneous alloys |
Components not disperse uniformly |
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N-Type Semiconductors |
More electrons, negative charge travels in the conductance band |
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P-Type Semiconductors |
Fewer electrons, "hole" travels in the valence band |
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Polymers |
Molecules of a high molecular weight made by joining smaller molecules (monomers) |
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Addition Polymers |
Formed when a bond breaks and electrons in the. Pnd make two new bonds |
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Condensation polymers |
Formed when small molecule is removed between two large molecules |
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Vulcanization |
Chains are cross-linked by short chains of sulfur atoms, making the rubber stronger |
