|Co-ordinator||Dr Keith Birkinshaw|
|Other staff||Dr Tudor Jenkins, Dr Philip Cadman|
|Pre-Requisite||PH21010 , PH23010|
|Course delivery||Lecture||20 lectures|
|Seminars / Tutorials||3 example classes|
|Assessment||Exam||End of semester examinations||80%|
|Course work||Examples Class 1 Deadline (by week of semester): week 4||7%|
|Course work||Examples Class 2 Deadline (by week of semester): week 8||7%|
|Course work||Examples Class 3 Deadline (by week of semester): week 11||6%|
A brief recap of relevant aspects of prerequisite courses is followed by a study of developments up to the Bohr theory. The spectra of H atoms, alkali metals and alkaline earths and the influence of external magnetic fields (Zeeman effect) provide the data for the study of parameters influencing atomic energy levels and transitions between them. The coupling of orbital and spin angular momenta, the Pauli Exclusion Principal, etc., are discussed and the specification of electronic states is explained. Selection rules and their consequences are presented. Rotational, vibrational and electronic spectra of diatomic molecules are considered. Detector arrays are surveyed.
After taking this module students should be able to:
Additional learning activities
Bohr theory, Schrodinger's equation, quantum numbers.
Spin, spin-orbit coupling, total angular momentum in a single electron atom.
Zeeman effect - space quantisation.
Many electron atoms - the Pauli Exclusion Principle.
LS coupling - jj coupling.
The spectrum of hydrogen and alkali atoms.
Radiative transitions and selection rules.
Width and intensity of spectral lines.
Fine and hyperfine structure - nuclear spin.
Rotational energy level of diatomic molecules, moment of inertia.
Population of energy levels.
Vibrational energy levels of diagomic mols, harmonic oscillator, Morse potential.
Electronic spectra of molecules, Franck-Condon principle.
** Reference Text
PW Atkins. Physical Chemistry. Oxford University Press ISBN 0-19-855284-X
Gerhard Herzberg. Atomic Spectra and Atomic Structure. Dover
AP Thorne. Spectrophysics. Chapman and Hall Invalid isbn : OUTOFPRINT : Spectrophysics : PH32010
** Should Be Purchased
TP Softley. Atomic Spectra. OUP ISBN 0-19-855688-8
CN Banwell. Fundamentals of Molecular Spectroscopy. McGraw-Hill ISBN 0-07-084139-X