What is Ptable?
Ptable is a fast, interactive periodic table made by Michael Dayah. Click any element to see its properties, electron configuration, isotopes and compounds, or switch views to compare melting points, electronegativity and more across the whole table.
It has been a favorite of students and teachers since 1997 and works in any browser, including phones, without signing up.
Key features
- Properties, orbitals, isotopes and compounds for every element
- Trend views with color-coded data
- Temperature slider to show states of matter
- Available in many languages
Pros
- Much richer than a printed table
- Fast and works on mobile
- No account and no clutter
Cons
- Some advanced data views take a moment to learn
- Has light advertising
Best for
Chemistry homeworkComparing element propertiesTeaching periodic trends
Ratings and reviews
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Ptable FAQ
Is Ptable free?
Ptable is free to use in the browser without an account.
Do I need an account to use Ptable?
No. Ptable works without signing up, so you can open ptable.com and start using it right away.
What are some alternatives to Ptable?
Similar free tools that also work without an account include Desmos, GeoGebra, Wolfram Alpha, Khan Academy, PhET Simulations and Purdue OWL.