PhET

PhET screenshots

PhET is a collection of physics simulations from University of Colorado
Build an atom simulation
PhET 1.0 : Build an atom simulation

Alternative downloads

Models of the Hydrogen Atom
Check how the prediction of the atomic model matches the experimental results.
8.0.310.13
FREE
Conductivity
Physics simulation model dealing with electricity.
6.0.260.3
FREE
Optical Quantum Control
Optimal Quantum Control is a physics simulation model.
1.04
FREE