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.

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

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.