Periodicity

Electron Configuration Animation http://intro.chem.okstate.edu/WorkshopFolder/Electronconfnew.html Click to add electrons to successive elements and see how the energy of sublevels redistributes.

Periodic Trends http://www.rsc.org/chemsoc/visualelements/Pages/data/intro_patterns.html Brief review of periodic trends including melting point and ionization energy.

Atomic and Ionic Radius Animation/Clip http://www.mhhe.com/physsci/chemistry/essentialchemistry/flash/atomic4.swf

Effective Nuclear Charge Clip http://hogan.chem.lsu.edu/matter/chap26/animate1/an26_015.mov

Periodic Table of the Elements http://www.periodicvideos.com/ A short video for each element. Highly informative!

4D Hypercube [|http://casa.colorado.edu/~ajsh/sr/hypercube.html]