A nuclide chart maps atomic nuclei by proton count, neutron count, stability, and decay behavior. Endian Engine is rebuilding the full interactive viewer as a secure SaaS product, but this page now remains useful as a public reference for the data model behind the tool.
A nuclide chart is a map of known atomic nuclei. Each position represents a specific nuclide: a nucleus with a defined number of protons and neutrons. This makes the chart different from a standard periodic table, because it shows isotope-level structure instead of only element-level structure.
Nuclide charts are usually organized with proton count on one axis and neutron count on the other. Stable nuclei form a recognizable band, while unstable nuclides appear around that band and decay toward more stable configurations.
Radioactive decay changes one nuclide into another. Alpha decay, beta decay, gamma emission, and related transitions can be represented as movement across the chart. That makes a nuclide chart useful for studying decay chains, isotope relationships, and nuclear data patterns.
The original public static viewer has been retired while Endian Engine rebuilds the system with protected access, cleaner controls, and a stronger long-term data architecture. The goal is to preserve the learning value while moving the full interactive dataset into a safer SaaS environment.