atomic_number: 19
symbol: K
name: Potassium
category: AlkaliMetal
category_label: Alkali Metal
period: 4
group: 1
group_label: 1 IA
block: s
grid_row: 4
grid_col: 1
phase: solid
lab_made: false
radioactive_marker: false
is_radioactive: false
atomic_mass: '39.098'
atomic_mass_value: 39.098
atomic_mass_most_stable_isotope: false
oxidation_states: '*1*'
oxidation_states_parsed:
- state: '1'
  common: true
ionization_energy: '4.341'
ionization_energy_ev: 4.341
electron_configuration: '[Ar] 4s^{1}'
electron_configuration_formatted: '[Ar]4s¹'
electron_configuration_html: '[Ar]4s<sup>1</sup>'
atomic_radius: '2.75'
atomic_radius_angstrom: 2.75
electron_affinity: '0.5015'
electron_affinity_ev: 0.5015
rsc_url: https://www.rsc.org/periodic-table/element/19/potassium