atomic_number: 88
symbol: Ra
name: Radium
category: AlkalineEarthMetal
category_label: Alkaline Earth Metal
period: 7
group: 2
group_label: 2 IIA
block: s
grid_row: 7
grid_col: 2
phase: solid
lab_made: false
radioactive_marker: false
is_radioactive: true
atomic_mass: '[226]'
atomic_mass_value: 226.0
atomic_mass_most_stable_isotope: true
oxidation_states: '*2*'
oxidation_states_parsed:
- state: '2'
  common: true
ionization_energy: '5.278'
ionization_energy_ev: 5.278
electron_configuration: '[Rn] 7s^{2}'
electron_configuration_formatted: '[Rn]7s²'
electron_configuration_html: '[Rn]7s<sup>2</sup>'
atomic_radius: '2.83'
atomic_radius_angstrom: 2.83
electron_affinity: '0.1'
electron_affinity_ev: 0.1
rsc_url: https://www.rsc.org/periodic-table/element/88/radium