N Nucleus Nuclear Physics

The Subatomic World

Explore radioactive decay chains, nuclear binding energy, fission and fusion reactions, and the Standard Model of particle physics.

Split the Atom

What We Offer

☢️

Decay Simulator

Watch radioactive samples decay in real time, plot decay curves, and calculate half-lives experimentally.

⚛️

Reaction Balancer

Balance nuclear equations for alpha decay, beta decay, fission, and fusion reactions step by step.

📊

Nuclide Chart

Interactive chart of nuclides showing stability, decay modes, and half-lives for all known isotopes.

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Particle Zoo

Explore the Standard Model with interactive diagrams of quarks, leptons, and force-carrying bosons.

Radioactivity

Study alpha, beta, and gamma decay, half-life calculations, decay chains, carbon dating, and radiation detection methods with interactive simulators.

Nuclear Reactions

Analyze fission and fusion processes, mass-energy equivalence, binding energy per nucleon, and nuclear reactor principles.

Particle Physics

Explore quarks, leptons, bosons, the Standard Model, particle accelerators, and the search for fundamental particles.

3,000+
Nuclides Charted
2,200+
Practice Problems
25+
Simulations
4.9/5
Student Rating

What Learners Say

Watching uranium-238 decay through its entire chain to lead-206 made half-life calculations intuitive.
Dr. Novak, Nuclear Physics
The Standard Model interactive diagram finally made particle physics organized instead of overwhelming.
Sarah L., Grade 12