Description

With the Building Atoms, Ions, and Isotopes app, explore the composition of the elements. Build atoms, ions, and isotopes by selecting appropriate numbers of protons, neutrons, and electrons. For reference, this app also includes atomic theory information and a periodic table that is interactive in the iPad version.

What's New in Version 3.1

This app has been updated by Apple to display the Apple Watch app icon.

**Added option to purchase all premium app content via in-app purchase