Atomic Structure and Periodicity 

Dr. Ott's Video Lectures Atomic Structures
Waves, Blackbody Radiation and the Work of Planck 17 min flash google video
Emmision Spectra and the Bohr Model of the Atom 11 min flash google video
deBroglie Wavelength 7 min flash google video
Quantum Numbers  16 min flash google video
Electronic Configurations  22 min flash google video