⚛️ Oxygen Atom — 2D Shell Chart: Ionization Energies and Aurora Lines

2D companion of the oxygen atom model: animated electron shells for any charge state from O2- to O8+, Slater-rule effective charge, successive ionization energies compared with measured values, and the red, green and infrared oxygen emission lines of the aurora.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install