Input interpretation
potassium cation
Structure diagram
Structure diagram
General properties
formula | K^+ net ionic charge | +1 alternate names | potassium ion | potassium(I) | potassium(1+)
Ionic radii
potassium cation state | radius 4-coordinate | 137 pm 6-coordinate | 138 pm 8-coordinate | 151 pm 12-coordinate | 164 pm
Units
Other properties
ion class | alkali metal ions | biomolecule ions | cations | group 1 ions | monatomic cations | s block ions common sources of ion | potassium vinyltrifluoroborate (1 eq) | potassium tungstate (2 eq) | potassium trimethylsilanolate (1 eq) | potassium trifluoroacetate (1 eq) | potassium thioacetate (1 eq)
Thermodynamic properties
molar heat capacity c_p | aqueous | 21.8 J/(mol K) (joules per mole kelvin difference) molar free energy of formation Δ_fG° | aqueous | -283.3 kJ/mol (kilojoules per mole) molar heat of formation Δ_fH° | aqueous | -252.4 kJ/mol (kilojoules per mole) molar entropy S° | aqueous | 102.5 J/(mol K) (joules per mole kelvin)