“[Y]ou might like Dynamic Periodic Table. It’s a simple little web app that can be a great learning tool for chemistry enthusiasts. The app is an interactive periodic table of elements where you can select one or more elements to view a list of all compounds that are formed from the two or three elements, you can view isotopes of an element, and also a list of its basic properties.
The web app is really a great tool that covers all the bases. You can view the naturally occurring state of an element, it’s weight and full name on the table itself. You can additionally enable viewing how many electrons an element has and view the table in a wide layout. If you click the ‘Properties’ tab, the table is color coded according to the properties of the elements, e.g. all metals appear in black.
Overall, it’s a great reference and learning tool. The web app has ads but they are unobtrusive. The app’s UI isn’t the greatest and does look cluttered enough to discourage you from using it but it’s worth a try.”
Source: addictivetips.com