Type an element name, symbol, or atomic number to highlight matches.
A free periodic table for quick reference
periodictable.study is a fast, no-clutter interactive periodic table built for chemistry students. Click any of the 118 elements to see its atomic number, atomic mass, category, state at room temperature, and electron configuration — then expand Full details for electronegativity, melting and boiling points, and density. Everything loads instantly and works on your phone, tablet, or laptop.
How to use it
- Click an element to open its detail card.
- Filter by category, common groups (noble gases, halogens, alkali & alkaline earth metals), metal/nonmetal/metalloid, or state at 25 °C.
- Search by name, symbol, or atomic number.
- Download the full data set as a CSV for offline study.
Go deeper
Every element also has its own reference page — see the full element index or click Full page inside any element's detail card. And if you're studying for a test, our short guides explain the ideas behind the table:
- How to read the periodic table — periods, groups, and what each tile tells you.
- Periodic trends — electronegativity, atomic radius, and ionization energy.
- Metals, nonmetals & metalloids — the three big classes and the staircase line.
- Electron configuration — how to write and read configurations, with the famous exceptions.
- Element families — a tour from the alkali metals to the noble gases.
Frequently asked questions
What information does each element show?
Each element card shows atomic number, symbol, name, atomic mass, category, and state at room temperature, plus its electron configuration. Expanding Full details adds electronegativity (Pauling scale), melting point, boiling point, and density.
How accurate is the data?
Atomic weights follow IUPAC; values in parentheses are the mass number of the most stable isotope. Electron configurations are standard ground-state configurations including the well-known exceptions. Melting points, boiling points, and densities are standard reference values, and a few of the heaviest synthetic elements have predicted or unknown values shown as a dash.
Can I download the periodic table data?
Yes. Use the Download element data (CSV) button to get all 118 elements and their statistics in a spreadsheet you can open in Excel or Google Sheets.
What do the colors mean?
Each color marks an element category: alkali metals, alkaline earth metals, transition metals, post-transition metals, metalloids, reactive nonmetals, halogens, noble gases, lanthanides, and actinides. The legend doubles as filter buttons.
Is it free to use?
Yes, periodictable.study is completely free. Ads at the bottom of the page keep it that way and are never required to use the table.