General Chemistry · Module 3 · Light, electrons and orbitals

Light and Electrons Walkthrough

Watch light ripple and arrive as photons, knock electrons out of metal, light up a hydrogen tube, build orbitals one dot at a time, and fill orbital boxes electron by electron. Go at your own pace. Nothing here is graded.

Speed

Think of it like this

Quick check

Wrong answers are fine here. Read why, then try again.

Dr. Akash Garg · General Chemistry Study Tools · Particle drawings are simplified and not to scale. CC BY-NC-SA 4.0
Use the left and right arrow keys to move between steps. Practice next in the Light and Electrons Lab. Light waves, photons and electrons are drawn far larger and slower than real; orbital clouds are computer-sampled hydrogen-like orbitals, and the boundaries between regions of the spectrum are approximate.