Welcome to Periodic Questioning ios Application.
Its an app where you can test your knowledge about elements of the periodic table. There are 3 difficulties in each (easy, medium, and hard).
Each difficulty has its level and they all have different duration of time provided to complete the quiz.
So make your you not only answer the question but you have to be quick and watch out for that timer.
If it goes to 0 your game will be over.
If you like our app please rate it on the app store and share it with your friends and family.