Periodic Table: Wave Functions II.
This visualization of the periodic table shows the wave function of the outermost electron. The wave function is the solution of the Schrödinger equation and describes the electron in its wave form. Yellow and red colors show positive, while blue and purple denote negative values. All atoms other than hydrogen are approximated with hydrogen for simplicity. In reality the wave functions will look somewhat, but not too different.
All atoms were chosen to have the same size to aid visibility. This way the structure of orbitals for the light elements are also visible. A scaled version of this figure can be found here: