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Interactive Periodic Table
A clickable periodic table of all 118 elements — search, filter by category, and see details.
Updated July 14, 2026
How to use the interactive periodic table
- 1Click any element to open its details.
- 2Search by name, symbol, or atomic number.
- 3Filter the table by category using the legend.
- 4Read the atomic number, mass, group, and period.
Common uses
- Looking up an element's atomic mass or symbol
- Studying element categories and periodic trends
- A quick chemistry reference for homework
- Finding an element's group and period
Frequently asked questions
How are the elements organized?
By atomic number — the number of protons — increasing left to right and top to bottom. Vertical columns are groups (elements with similar chemistry), and horizontal rows are periods. The colors mark each element's category, such as metal, metalloid, or noble gas.
Why are two rows shown separately at the bottom?
Those are the lanthanides (elements 57–71) and actinides (89–103), the f-block. They technically belong in group 3 of periods 6 and 7, but pulling them out keeps the table a readable width — every printed periodic table does the same.
What does the atomic mass mean?
It's the average mass of an element's atoms, in atomic mass units, weighted by how common each isotope is. For elements with no stable isotope (many radioactive and synthetic ones), the value shown is the mass of the most stable known isotope.
About this tool
The interactive periodic table shows all 118 known elements, color-coded by category from alkali metals to noble gases. Click any element to see its atomic number, symbol, name, atomic mass, group, and period. Search by name, symbol, or number, or filter the whole table by category to see a group light up at once. The lanthanides and actinides are laid out in the usual two rows below the main table. It's a fast, clean reference for students and the chemistry-curious — everything runs in your browser.
Like most tools on UtilityBase, the interactive periodic table runs entirely in your browser — nothing you enter is uploaded or stored on a server. It's free to use with no account required. Browse more calculators here.
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