Terms of Use | PeriodicTableHub

These terms of use govern your access to and use of the PeriodicTableHub website (periodictablehub.com). Please read them carefully before you start using the site. By continuing to use the site, you agree to these terms.

Permitted Use

PeriodicTableHub is an open educational resource. You are permitted to:

Viewing, reading, and studying information for personal, educational, and non-commercial purposes

Quoting materials with a mandatory link to periodictablehub.com as the source

Sharing direct links to site pages on social media, messengers, and forums

Using the site as a reference when preparing for classes, exams, and research papers

Using the embeddable periodic table widget on your own websites (with attribution)

Printing materials for personal use or educational purposes

Prohibited Use

The following actions are strictly prohibited without prior written permission:

Commercial use of content without prior written permission

Automated data collection (web scraping, crawling) without permission

Copying, modifying, and reselling site content

Removing or altering authorship and attribution marks

Using content to create competing products

Any actions that may harm the site's operation or reputation

Embeddable Widget

PeriodicTableHub provides a free embeddable interactive periodic table widget that you can place on your own website. When using the widget:

The link to PeriodicTableHub must remain visible and active
Modifying the widget code to remove attribution is prohibited
The widget is provided "as is" without guarantees of uninterrupted operation

Privacy

PeriodicTableHub respects your privacy. We do not collect personal data, require registration, or use tracking cookies. All settings (theme, language, favorite elements) are stored exclusively locally on your device.

For more details, see our Privacy Policy.

Data and Sources

Scientific data on the site (atomic masses, physical and chemical element properties) is collected from authoritative sources: IUPAC, PubChem, WebElements, and others. This data consists of well-known scientific facts.

Full list of sources — on the Data Sources page.

Changes to Terms

We reserve the right to update these terms of use at any time. Changes take effect upon publication on this page. Continued use of the site after changes are made constitutes your agreement to the updated terms.

Contact

If you have questions about these terms of use, contact us:

periodictablehub@gmail.com

Last updated: February 2026