Learning outcomes - after studying this topic, you should be able to:

• relate absorption and emission of photons to changes in electron energy levels
• calculate emission and absorption wavelengths from energy levels
• identify constraints on analysis by atomic absorption spectroscopy (AAS)
• describe how the hollow cathode lamp operates, and why it is central to sensitive AAS measurements
• use the Beer-Lambert law
• understand the relationship between absorption and observed colour
• relate electronic absorbance and emission spectra to electronic structure
• recall the meanings of HOMO and LUMO, and determine the lowest energy electronic transition
• describe the process of molecular spectroscopy
• compare and contrast atomic and molecular spectroscopy
• calculate energy levels for one-electron atoms

• Section 4.5 (in Blackman, Bottle, Schmid, Mocerino and Wille, Chemistry, 3^rd Edition, 2015 (John Wiley) )

• Fundamentals of spectroscopy (in ChemWiki)