Hydrogen Atom Orbital Viewer

Falstad’s Hydrogen Atom Orbital Viewer lets you turn, slice, and compare 3-D views of hydrogenic electron wavefunctions. It is a hands-on way to move past the familiar lobe pictures and inspect what changes between states.

What is Hydrogen Atom Orbital Viewer?

The Hydrogen Atom Orbital Viewer takes a subject often taught as a gallery of frozen shapes and gives it handles. Choose an orbital, drag to rotate the three-dimensional view, then use slices and settings to look at the same state from a different angle. The official directions explain that brightness tracks probability density while color can indicate phase, which makes this a tool for questioning a picture rather than merely admiring it. Real orbitals are the default, but the menu also opens complex-orbital and combination views, so the experiment can grow with the course material. A third-party educational catalog describes it as a rotatable, zoomable view across a wide range of basis states. The controls are dense enough to reward slow exploration. Pick one familiar orbital first, change one setting at a time, and notice what the display is actually encoding before moving on to the more exotic options.

What you can do there

• Select hydrogenic orbitals
• Rotate and slice a 3-D wavefunction view

Why we picked it

This viewer gives abstract quantum labels a sense of shape, orientation, and change without pretending the subject is simple. It invites the useful habit of rotating a concept until its assumptions show.

How to get the most from it

Begin with a familiar orbital and drag the view to orient it. Switch between full-atom and planar-slice modes, then compare real and complex orbital options. Use the settings gradually so each graph, color, or scale change has a chance to mean something.

Good to know

The site models hydrogenic-atom wavefunctions, a useful theoretical simplification rather than a universal picture of every atom. This profile did not verify current keyboard, touch, browser, or accessibility support, and no screenshot was captured.