Atomic and Molecular Physics (PHYS-602/BS Physics 04 years)

Atomic and molecular physics is the study of the properties, dynamics and interactions of the basic (but not fundamental) building blocks of matter. A crucial component of this is understanding the behaviour of the electrons that surround the atomic nucleus; these dynamics dominate the way atoms and molecules interact with their environment.

Course Material

01 The Thomson model, The Rutherford model, Alpha-Particle Scattering

02 Nuclear dimensions, Electron orbits, Failure of classical Physics

03 Atomic spectra and its types, Atomic spectra of hydrogen atom , The Bohr atom

04 Energy levels and spectra , Atomic excitation and its mechanism, Frank Hertz experiment

05 Nuclear Motion and Reduced Mass, The Correspondence principle,Quantum Theory of the Hydrogen Atom, Quantum numbers, Total Quantum numbers, Orbital Quantum number

06 Magnetic Quantum Number, Spin-orbit interaction, Exclusion principle

07 Electron configuration in many electron-atoms, Hund’s rules, Coupling of angular momenta, LS-coupling, jj-coupling

08 Origin of Spectral lines, Selection Rules, One electron Spectra,Two-electron Spectra, Relative intensities in a multiplet, Xray spectra

09 Atoms in Magnetic and Electric fields: Space quantization, Magnetic moment, electron probability density

10 Zeeman Effect, Paschen-Back effect, Stark effect

11 The chemical bond, Molecular formation, Electron sharing

12 The H2 molecular ion, The linear combination of atomic orbits method, The H2 molecule

13 The Ionic bond, Theories of Bonding

14 The valence bond approach, Frankcondon principle