Chemical Bonding
Text: Chapters 8, 9 and 10
| *occurrence | |||
| *definition | |||
| *properties of metals | conductivity (heat and electrical) | reflectivity | color |
| *band theory | |||
| *conductors | |
| *core/lattice | *phonons |
| *valence band | |
| *conductance band | |
| *temperature dependence <------**** | |
| *concept of band gap (Eg) <-------**** | |
| *temperature dependence <-------**** | |
| *isoelectronic substitutions | |
| *"tuning" semi-conductors | |
| *doping | p-type doping |
| n-type doping | |
| p-n junctions | |
| *Light-Emitting Diodes (LEDs) | wavelength dependence on compostion and temperature. |
| forward vs reverse bias | |
| *insulators | |
| *nature of superconductivity | *critical temperature (Tc) |
| Cooper pairs | Meissner effect |
| Type I superconductors | Type II superconductors |
| *definition | examples |
| * lattice energy (Born-Haber cycles) | effects of ion charge |
| influence of internuclear radii | |
| *influence on physical properties such as melting point and solubility in water | |
| *valence electrons | |
| *bond formation | |
| *covalent bonding and Lewis electron-dot structures | |
| *octet rule | exceptions to the octet rule |
| *multiple bonds | |
| *resonance | |
| *molecular orbital (MO) theory | |
| *bond order | *bond length |
| *bond energy | *bond dissociation |
| * polar covalent bonds & electronegativity | *coordinate covalent bonds |
| *formal charge | |
| fundamental shapes (number of atoms and bonding electrons) | ||||
| *linear | *trigonal planar | *tetrahedral | *trigonal bipyramidal | *octahedral |
| shapes dependent upon the number of bonding AND nonbonding pairs | ||||
|
1 |
bent | bent | see-saw | square pyramidal |
|
2 |
linear | T-shaped | square planar | |
|
3 |
linear | |||
| *molecular polarity | ||||
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