Radium (Ra) element properties, information, facts, uses and Periodic Table trends. Complete information about the Radium element - Atomic Number 88, atomic mass [226], melting point, How to Locate on Periodic Table, History, Abundance, Physical Properties, Thermal Properties, Crystal Structure, Atomic & Orbital Properties, electron configuration, Chemical Properties Radium, Isotopes, Health and Safety Parameters, comparison with other elements | SchoolMyKids Interactive Dynamic Periodic Table