Input interpretation
![potassium cation](../image_source/1c317462a1c873c8755617f1ba9218c6.png)
potassium cation
Structure diagram
![Structure diagram](../image_source/456d14d0b0ce47248355d880f1afcc11.png)
Structure diagram
General properties
![formula | K^+ net ionic charge | +1 alternate names | potassium ion | potassium(I) | potassium(1+)](../image_source/59058f8fd51a98f988c53048e762d939.png)
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](../image_source/b172b7b6be7ccf1e30870074cf06c6be.png)
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)](../image_source/57e5f632569faefd22d81710ce8f3c82.png)
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)](../image_source/90f3c4d4c227f650a164e656f681e9cc.png)
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)