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CHEM1901 - Resources for Week 5


Topics and Learning Outcomes

  • Atomic Electronic Spectroscopy
    •  explain the difference between core and valence electrons
    •  distinguish between absorbance and emission spectra
    •  explain how atomic absorption spectroscopy (AAS) works
    •  convert experimental data between transmission, absorbance, and concentration if given appropriate information
    •  calculate the minimum wavelength of Bremsstrahlung radiation
    •  explain how the elements in stars and other celestial objects can be identified and their abundances measured from visible and X-ray spectrometry
  • Band Theory - MO in Solids
    •  explain how band structure in insulators, semiconductors and metals arise from delocalised orbitals
    •  describe the characteristics of natural and doped semiconductors, including band-gap energy
    •  explain how semiconductors are used in solar energy collection and conversion
    •  describe chemical vapour deposition, and how it can be used to build up layers of different composition.
  • Polar Bonds
    •  represent a dipole in a bond, and use electronegativity to identify the positive and negative ends
    •  describe and explain the periodic trends in electronegativity
  • Ionic Bonding
    •  explain the origin of ionic bonding as a limiting case of MO theory
    •  explain why ionic interactions lead to crystals rather than small molecules
    •  define the Madelung constant, and explain its relevance to the stability of an ionic crystal
    •  explain how ionic radii influence crystal structure, and why they differ from atomic radii

Textbook and eBook References

  • Atomic Electronic Spectroscopy - Section 4.5
  • Band Theory - MO in Solids - Sections 7.2 and 7.8
  • Polar Bonds - Sections 5.5 and 6.8
  • Ionic Bonding - Sections 5.2 and 7.2
the eBook references are free and are taken from high quality sources.

Lecture Notes, Tutorial Worksheets & Answers and Suggested Exam Questions

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ChemCAL and iChem Resources

Polar Bonds

Contributed Links and Resources

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Atomic Electronic Spectroscopy -  
Band Theory - MO in Solids -  
  Intro to energy bands  
 
 
Polar Bonds -  
Ionic Bonding -  

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