Input interpretation
iron(II) cation
Structure diagram
Structure diagram
General properties
formula | Fe^(2+) net ionic charge | +2 alternate names | ferrous | iron(II) | iron(2+)
Ionic radii
iron(II) cation state | radius 4-coordinate | 63 pm 6-coordinate | 61 pm 8-coordinate | 92 pm
Units
Other properties
ion class | biomolecule ions | cations | d block ions | group 8 ions | iron(II) ions | monatomic cations | transition metal ions common sources of ion | triirondodecacarbonyl (1 eq) | iron(II) sulfate hydrate (1 eq) | iron phthalocyanine (1 eq) | iron(II) molybdate (1 eq)
Thermodynamic properties
molar free energy of formation Δ_fG° | aqueous | -78.9 kJ/mol (kilojoules per mole) molar heat of formation Δ_fH° | aqueous | -89.1 kJ/mol (kilojoules per mole) molar entropy S° | aqueous | -137.7 J/(mol K) (joules per mole kelvin)