The Quantum-Mechanical Periodic Table

Emission spectra and 3D orbitals from the Schrödinger equation, Einstein A coefficients and dipole matrix elements. Click an element.

    Atomic number (Z):
    Valence Z_eff (Slater):
    Electron configuration:
    Intensity calculated from: Dipole matrix (A21)
    Rotatable 3D orbitals (drag with the mouse or swipe)
    1s
    Measured spectrum of the neutral atom, 380–750 nm – brightness ∝ gkAki (hover over the lines)