Periodic Table
Interactive periodic table
About This Tool
Interactive periodic table of chemical elements. Click any element to see its symbol, atomic number, atomic weight, group, period, and category.
Frequently Asked Questions
How do I find an element?
Click a cell on the table or use the search box to filter by element name or symbol.
What do the colors mean?
Colors indicate element categories such as metals, nonmetals, noble gases, and lanthanides/actinides.
Are atomic weights exact?
Weights shown are standard atomic weights for quick reference. Isotopic composition can vary slightly.
Does this work offline?
Yes. The periodic table data is bundled and runs entirely in your browser.