Periodic table of elements

All 118 elements in their true table geometry. Search by name, symbol or atomic number and open sourced reference data for every element.

118 elements · 7 periods · 18 groups

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Position is part of the information.

Groups run vertically and periods horizontally. Lanthanides and actinides remain visible as separated rows without obscuring their chemical order.

Data version and sources

Core values come from a locally versioned PubChem dataset. Missing values remain visibly unavailable instead of being filled with estimates.

Open the PubChem data source