02 - Kahn Academy - more on orbitals and electron configuration
Elementary / Math / Ratios and Proportions
http://www.youtube.com/watch?v=FmQoSenbtnU All credit to Salman Khan and his Kahn Academy for the video. Please click the YouTube link to see the original video. It has been copied to teacher tube because the NT Government in Australia believes YouTube is anti-education. TeacherTube is permitted on the system.
