chem107f07wk10

chem107f07wk10 - Solid State Chemistry Chp. 8.2, 8.3...

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Crystalline Solids – regular arrangement of molecules or atoms. Amorphous Solids – disordered arrays of atoms or molecules. Crystalline SiO 2 Quartz Amorphous SiO 2 Glass Solid State Chemistry Chp. 8.2, 8.3
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Structure Determination: X-Ray Diffraction
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network covalent molecular ionic metallic Types of Solids
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Types of Solids
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Alloys – non-stoichiometric solid solutions Substitutional – solute metal occupies (substitutes) positions of host metal lattice. brass – 67% Cu, 33% Zn Interstitial – solute metal occupies interstitial sites in host lattice. stainless steel – 80.6% Fe, 0.4% C, 18% Cr, 1% Ni Intermetallic Compounds – compounds formed by two or more metals with a definite stoichiometric ratio Alloys and Compounds
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simple cubic body-centered cubic a a b b a Packing Chp. 8.2
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hexagonal closest cubic closest a a b a c b a Packing Chp. 8.2 a b c
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Unit Cells Chp. 8.2
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Unit Cells Chp. 8.2
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Unit Cells Chp. 8.2
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Unit Cells Chp. 8.2
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Unit Cell Packing Atoms/Cell Coord. # Space Simple Cubic sc 1 6 52% Body Centered Cubic bcc 2 8 68% Face Centered Cubic ccp 4 12 74% Unit Cells Chp. 8.2
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Irridium, one of the most dense metals, has a face-centered cubic unit cell and a density of 22.56 g/cm 3. Use this information to calculate the radius of an irridium atom.
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Bonding in Solids Chp. 8.3 Molecular Orbital Theory Band Theory
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Metals, Insulators and Semiconductors Chp. 8.3
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Metals, Semiconductors and Superconductors Chp. 8.3
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Semiconductors Chp. 8.3 n-type p-type
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Semiconductors: p-n Junction Chp. 8.3
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Semiconductors: p-n Junction Chp. 8.3
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photovoltaic cell current generated by light Photovoltaic Cells Chp. 8.3
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Light Emitting Diodes Chp. 8.3
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Superconductors Chp. 8.3
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Superconductors Chp. 8.3
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Superconductors Chp. 8.3
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Fe 2 O 3 (s) + Al(s) Fe(s) + Al 2 O 3 (s) Thermochemistry Chp. 9
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Energy – the capacity to do work ( w
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chem107f07wk10 - Solid State Chemistry Chp. 8.2, 8.3...

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