Periodic Table Tool
Look up any chemical element instantly — search by name, symbol or atomic number and see its mass, group and category. — free, fast and private.
Search or tap an element to see its details.
How to use Periodic Table Tool
- Type an element name, symbol or atomic number in the search box.
- Or tap any element in the list below.
- Read its atomic number, symbol, mass and category.
Note: this tool runs in your browser. Nothing is uploaded.
Frequently Asked Questions
Is the Periodic Table Tool free?
Yes, it is 100% free with no sign-up and no limits.
How many elements does it include?
It includes 35 common elements, from Hydrogen to Oganesson, with atomic number, symbol, atomic mass and category.
Can I search by symbol?
Yes — type a name, symbol or atomic number in the search box and the matching elements appear instantly.
Is my input uploaded anywhere?
No. Your text stays in your browser and is never uploaded to any server.