Information accuracy is our priority. All data on PeriodicTableHub is collected from authoritative scientific sources and thoroughly verified. Below is a list of the primary and supplementary sources we rely on.
Primary Sources
The International Union of Pure and Applied Chemistry — the principal authority for defining official names, symbols, and atomic masses of chemical elements. We use IUPAC 2016 nomenclature for the newest elements (113–118).
The world's largest database of chemical compounds from the National Center for Biotechnology Information (USA). Contains detailed information about chemical and physical properties of elements.
An authoritative reference for physical and chemical properties of elements, created by Professor Mark Winter at the University of Sheffield. Used as an academic source worldwide.
The free encyclopedia — a source of general information, discovery history, and applications of elements. We cross-reference data from Wikipedia with primary scientific sources for accuracy.
Additional Sources
How We Ensure Accuracy
We understand that the accuracy of scientific data is critically important. Here is how we work on information quality:
Cross-verification
Every metric is verified against at least two independent sources
Regular updates
Data is updated according to new IUPAC publications and scientific discoveries
User feedback
Users can report inaccuracies via the button on each element page
Despite thorough verification, information on the site may contain inaccuracies. For critical decisions, always verify data against primary scientific sources. If you notice an error, please let us know.
Last data update: February 2026