Big Idea: Design an app that able to give us all the information about any element just from giving the atomic number of the element. . Design Challenge: This app contains information about the elements and a molar mass calculator that will help you with several chemistry problems. There is a gallery available, which contains pictures of every element. Atomic structure App This app will display the classic organisation of the elements, presented in the common ascending atomic number. Clicking on every element will give full information about it, as well as a picture to know how it looks like in real life.