LearnPlay118 ELEMENTS · ONE CONNECTED WORLD
Elements From stars to your world
Start with something you know
Object → structure → atom → starNo matching elements. Clear the filters or try a symbol.
Ask. Predict. Investigate. Explain.
Protons choose the element. What can you change?
Mass number
Charge
First 18 elements; simplified shell occupancy. Nuclear stability, binding, and ion lifetime are not simulated. Some combinations are unbound. Sizes and paths are illustrative.
THE UNIVERSE IS A NUCLEAR WORKSHOP
Follow the evidence back to the stars
Change the stellar scenario
Guided scenarios, not a stellar evolution calculation. Initial mass, composition, mass loss, rotation and companions influence the outcome.
YOUR QUESTIONS BECOME DISCOVERIES
My discovery notebook
Saved on this device. Export a copy to keep your evidence, predictions and explanations.
Your next “why?” belongs here.
Investigate a pencil, identify a mystery spectrum, or mix isotopes. Save a result to start your notebook.
Models, data & scientific sources
Read the model, question the limits
3D scenes are teaching illustrations. Sizes, distances, motions and timescales are not to scale. Electron shells show occupancy, not paths. The cloud is an illustrative density view, not a calculated quantum wavefunction.
A displayed isotope has a stated mass number: protons plus neutrons. Average atomic weight is a separate measured quantity; it is not used to infer neutron counts. Square brackets indicate a selected radioactive isotope.
Origin colours show possible pathways, not measured shares. Unknown properties stay unknown. Each investigation lists its data source, conditions and simplifications.
Sources and offline learning
Save the Labs pack from the Labs page for offline learning. Narration depends on voices installed on your device; source websites need a connection.
Open Labs & offline pack