**[Cr:4, Lc:3, Tt:1, Lb:0]**

- Multielectron atoms: Schroedinger equation for He atom, spin wavefunction and Pauli's exclusion principle, ground state and first excited state, complete level schemes of He, Other multielectron atoms. Thomas-Fermi approach and Hartree-Fock approximation for studying multi-electron atoms.
- Molecules: Hydrogen molecular ion, Hydrogen molecule, Born-Oppenheimer approximation, Frank-Condon transition, molecular potential energy curves, Molecular orbitals, Morse potential formalism.
- Spectroscopy of atoms and molecules: Fine and Hyperfine structure of atoms, electronic, vibrational and rotational spectroscopy of molecules, selection rules, some experimental techniques of spectroscopy.
- Atom Radiation interactions: Semi-classical description of radiation. Absorption, spontaneous and stimulated emissions, Einstein's A and B coefficients, Coherent and Incoherent emissions, LASERs and MASERs, Line widths, various types of line broadening, two-level atoms in a radiation field.

- B. H. Bransden and C. J. Joachain, Physics of Atoms and Molecules, 02nd edition, Pearson Education (2008).
- P. Atkins and J. De Paula, Physical Chemistry, 08th edition, Oxford University Press (2009).
- J. J. Sakurai, Quantum Mechanics, Addison Wesley Low Priced Edition (2008).
- L. I. Schiff, Quantum Mechanics, 03rd edition, McGraw-Hill (1968).
- W. Demtroder, Atoms, Molecules and Photons, Springer-Verlag Berlin (2006).
- J. B. Rajam, Atomic Physics, S. Chand & Company Ltd. (2007).