Our official Google+community. Best periodic table of chemical elements. Chemistry in your pocket. Features: 1) 118 elements. 2) Atomic, thermodynamic, material, electromagnetic, nuclear properties and reactivity for each element. 3) Electron shell diagram for each element. 4) Solubility chart. IN-APP PURCHASE CONSISTS OF: 1) Solubility chart. 2) 4x zoom of table view.