Input interpretation
calcium cation
Structure diagram
Structure diagram
General properties
formula | Ca^(2+) net ionic charge | +2 alternate names | calcium(II) | calcium(II) cation | calcium(2+)
Ionic radii
calcium cation state | radius 6-coordinate | 100 pm 8-coordinate | 112 pm 10-coordinate | 123 pm 12-coordinate | 134 pm
Units
Other properties
ion class | alkaline earth metal ions | biomolecule ions | cations | group 2 ions | monatomic cations | s block ions common sources of ion | L-threonic acid hemicalcium salt (1 eq) | lignosulfonic acid calcium salt (1 eq) | hydroxyapatite (5 eq) | calcium zirconate (1 eq) | calcium tungstate (1 eq) | calcium titanate (1 eq) | calcium thiocyanate tetrahydrate (1 eq) | calcium silicate (1 eq) | calcium propionate (1 eq) | calcium phosphide (1 eq)
Thermodynamic properties
molar free energy of formation Δ_fG° | aqueous | -553.6 kJ/mol (kilojoules per mole) molar heat of formation Δ_fH° | aqueous | -542.8 kJ/mol (kilojoules per mole) molar entropy S° | aqueous | -53.1 J/(mol K) (joules per mole kelvin)