Includes a multiple-choice quiz on atomic orbitals. A Javascript-capable browser and the Chime plugin is required. A virtual exhibit on the electron outlining the evolution of the electron concept since its discovery in 1897, the role of electrons in chemistry, and a list of technologies that exploit the electron's wave-particle duality. Includes QuickTime movies and Shockwave animations. Energy levels, transition probabilities, and wavelengths for atomic line spectra.
Ionization energies for neutral atoms are also available on a hyperlinked periodic table.
The Pittsburgh Supercomputer Center's Projects in Scientific Computing is a collection of 53 beautifully illustrated short articles that help to make some of the rugged frontiers of chemistry and physics accessible to nonspecialists. Check out Mysteries of Water , Changing States , Wet Electrons , and Well Dressed Electrons . Graphic showing qualitative line spectra for common discharge lamps. A concise, nicely illustrated article on colored light production in fireworks. Emission bands for Na, CaCl, SrCl, BaCl, and CuCl give rise to yellow, orange, red, green and blue fireworks.