The level of information is very basic and it lacks content

This application is a regurgitation of the program elements.
The program lacks many features that should be added to be competitive and uptodate.
There are no radioistope list, which are essential in nuclear chemistry.
There are no physicochemical parameters.
No binding energies.
No elastic properties if any.
Many things ae missing and the list can go on.
2 dollars wasted.

Hooka Fan about iElements Periodic Table