Produce light by bombarding atoms with electrons. See how the characteristic spectra of different elements are produced, and configure your own element's energy states to produce light of different colors.

A useful site with information on molybdenum, its uses and properties, as well as electron configuration and isotope data.

Excellent summary of physical and chemical properties of radon, along with electron arrangement information and isotope data.

Adjust variables to see numerous configurations of the electron orbitals of Benzene.