What is Ptable?
Ptable is an interactive periodic table that has been online since 1997. Rather than just linking to element write-ups, it works as an application: you hover over an element to read its properties, change the temperature to see which elements are solid, liquid or gas, and switch between views for electrons, isotopes and compounds.
It covers data such as weight, electronegativity, melting and boiling points, ionization energy, radius, density and oxidation states. It can be installed as an app for offline use, has a dark mode and offers element names in dozens of languages. Write-ups come from Wikipedia and open in windows you can move or dock.
Main Features
- Properties, Electrons, Isotopes and Compounds views
- Temperature control that shows the state of each element
- Compound mixing with formula entry
- Wide and compact layouts, with a sidebar or top bar
- Dark mode and a print style sheet
- Installable for offline use
- Element names in dozens of languages
- Citation formats for bibliographies
How to Get Started with Ptable
- Open ptable.com in your browser.
- Hover over an element to see its properties.
- Switch between the Properties, Electrons, Isotopes and Compounds tabs.
- Adjust the temperature to see states of matter change.
- Use add to home screen or the browser's install button for offline use.
Ptable Pricing
Ptable is free to use with a single ad banner. Donating $1 a month on Patreon removes the banner, as does buying an item from its shop.
Who Should Use It?
- Chemistry students at school or university
- Teachers projecting the table in class
- Anyone looking up element data quickly
- Students who need a citable reference
Ptable Alternatives
- GeoGebra gives you free graphing, geometry and maths tools in the browser.
- Khan Academy teaches maths and science through lessons and practice.
- Size of Life compares living things from tiny to huge as you scroll.
Frequently Asked Questions
Is Ptable free?
Yes, the full table is free with one ad banner. A $1 monthly Patreon donation or a shop purchase removes the banner.
Does Ptable work offline?
Yes. You can install it on a phone or computer and still view properties, isotopes and compounds offline.
Where do the element write-ups come from?
Ptable uses Wikipedia for its write-ups and focuses its own work on the interactive table.
How do I cite Ptable?
Its About page gives ready-made APA and MLA citations.