Periodica is a beautifully designed, interactive periodic table for anyone who loves chemistry — students, teachers, and the endlessly curious. Explore all 118 elements with interactive 3D atomic models, electron shells, and detailed properties.
Privacy first: Periodica does not collect, store, or upload any personal data. No account required.
Features
Complete periodic table
All 118 elements, color-coded by category, with a smooth zoomable layout.
Interactive 3D atom
Rotate a SceneKit-powered atomic model for every element.
Electron shells & configuration
Animated Bohr-model shells plus full electron configuration diagrams.
Real physical data
Atomic mass, melting/boiling points, density, electronegativity and more.
Isotopes & compounds
Natural abundance, half-life, and common compounds for each element.
English & Chinese
Follows your system language automatically, with light & dark themes.
Privacy first
- No personal data is collected, stored, or uploaded.
- No account or sign-in required.
- No third-party analytics, advertising, or tracking SDKs.
- Element images are loaded from public educational sources and cached on your device.