Chemistry Chapter 14: Types of Solids

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12 Terms

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Amorphous

No regular pattern

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Examples of Amorphous

plastics, glass, wax, igneous rock

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Crystalline

Has a regular pattern

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Examples of Crystalline

Ionic, Molecular, Covalent Network, and Metallic

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Ionic

Cation and anion, high melting points, soluble in water, conducts if dissolved or melted, hard, nonvolatile

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Examples of Ionic

NaCl,  KCl, CaF2, K2O

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Molecular

1 or more nonmetals, weak IMFs, low melting/boiling points, insoluble in water (unless polar/acid) always nonconductors, most are soft, usually volatile

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Examples of Molecular

CH4, CO2, H2O, C12H22O11, HCl, HNO3

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Covalent Network

Atomic, network of covalent bonds, very high melting point, insoluble, always non-conductors, very hard, nonvolatile

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Examples of Covalent Network

C (diamond), C(graphite), Si, Ge, P(red), SiC, BN, SiO2

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Metallic

Positive ions surrounded by sea of electrons, wide range of melting points, conducts in solid or if melted, ranges from soft to hard, nonvolatile (except Hg)

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Examples of Metallic

All metal and all alloys