Immediately find any imaginable information about an element, calculate molar masses of any compounds you like, facilitate your overview with infographics, compare atomic radii, masses, electronegativities, and much more!
After over a million downloads, now in a new design, with more functions and improved features
The Merck KGaA, Darmstadt, Germany PTE App is the ultimate tool for every friend of chemistry - whether pupil or teacher, student or professor, amateur or expert, hobbyist or technician. Our app is a must-have of digital periodic tables. Get informed with our mobile reference work, any time, with ease, offline and in detail.
Thanks to the many hours of work, experiences, reviews and user feedbacks on our first PTE App (with over a million downloads!) we are now able to provide the new, improved and more appealing version of our App.
Even more features. Even more improvements. Even more user friendliness.
Download now free of charge and start experimenting.
★ All important information about the elements
Atomic number, valence electrons, oxidation state, electronegativity according to Allred-Rochow and Pauling, atomic mass, boiling point, melting point, atomic radius, density, history, discoverer, classification, crystalline structure type, electron configuration, basic state, ionization energy, isotopic composition, state of matter, hardness according to Mohs, oxidation numbers, percentage of mass in Earth's crust, year of discovery, half-life, and much more.
★ Visualized element properties
Atomic radius, atomic radius graphic, electronegativity (according to Allred-Rochow and Pauling), ionization energy, relative atomic mass, state of matter, ranking list of properties, discovery, classifications.
★ Molar mass calculator
Simple entry field for chemical formulas. Calculate molar mass simply and quickly.
★ Offline use.
No Internet needed. All contents in the app.
★ Economical handling of access rights.
★ Variety of languages
German, English, French, Spanish.
★ Interactive operating system
Smart operating elements and numerous selection options
Questions? Feedback? Suggestions? – You can reach us at [email protected]
Thank you all for your extensive feedback in the brief period of time since our update – both in-store and via email.
We take any feedback seriously and therefore promptly provide our first update:
- Re-activation of the back button to close the app
- Correction of the classification of Astat
- Preview of discovery year BC corrected
- Several small bugfixes and stability improvements
We really appreciate your suggestions to help and improve our app!