Our Periodic Table of Elements App

Immediately find any imaginable information about an element, calculate molar masses of any compounds you like, facilitate your overview with infographics and much more.

About the App

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 the Merck KGaA, Darmstadt, Germany PTE 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?.

Get it now!

Apple itunes

Download the PTE app on the itunes app store.

Google Play

Download the app on the Google Play store.

Google Play


You have accessed?http://www.kvqryg.live, but for users from your part of the world, we originally designed the following web presence?https://www.merckgroup.com.

Let's go

Share Disclaimer

By sharing this content, you are consenting to share your data to this social media provider. More information are available in our?Privacy Statement.?