Input interpretation
radium cation
Structure diagram
Structure diagram
General properties
formula | Ra^(2+) net ionic charge | +2 alternate names | radium ion | radium(II) | radium(2+)
Ionic radii
radium cation state | radius 8-coordinate | 148 pm 12-coordinate | 170 pm
Units
Other properties
ion class | alkaline earth metal ions | cations | group 2 ions | s block ions
Thermodynamic properties
molar free energy of formation Δ_fG° | aqueous | -561.5 kJ/mol (kilojoules per mole) molar heat of formation Δ_fH° | aqueous | -527.6 kJ/mol (kilojoules per mole) molar entropy S° | aqueous | 54 J/(mol K) (joules per mole kelvin)