Periodic Table Reference

Summary

Search and browse all 118 elements with atomic number, symbol, mass, electron configuration, group, and period.

How it works

1. Type an element name, symbol, or atomic number in the search box.
2. Use the category filter to narrow elements by type (e.g. noble gas, transition metal).
3. Click any element card to see its full property sheet.
4. Click the copy icon next to any property to copy it to your clipboard.
5. Clear search and filters to return to the full 118-element list.

Use cases

• Look up atomic mass or electron configuration while studying chemistry.
• Verify element group and period for homework or lab prep.
• Compare properties across elements in the same group or period.
• Quickly locate element symbols on a mobile device during class.
• Review element categories (metals, nonmetals, metalloids) before an exam.
• Copy exact atomic masses for use in stoichiometry calculations.

Frequently Asked Questions