atomic_number: 26
symbol: Fe
name: Iron
category: TransMetal
category_label: Transitional Metal
period: 4
group: 8
group_label: 8 VIIIB
block: d
grid_row: 4
grid_col: 8
phase: solid
lab_made: false
radioactive_marker: false
is_radioactive: false
atomic_mass: '55.845'
atomic_mass_value: 55.845
atomic_mass_most_stable_isotope: false
oxidation_states: 6 *3* 2 0 -2
oxidation_states_parsed:
- state: '6'
  common: false
- state: '3'
  common: true
- state: '2'
  common: false
- state: '0'
  common: false
- state: '-2'
  common: false
ionization_energy: '7.902'
ionization_energy_ev: 7.902
electron_configuration: '[Ar] 3d^{6}4s^{2}'
electron_configuration_formatted: '[Ar]3d⁶4s²'
electron_configuration_html: '[Ar]3d<sup>6</sup>4s<sup>2</sup>'
atomic_radius: '2.04'
atomic_radius_angstrom: 2.04
electron_affinity: '0.151'
electron_affinity_ev: 0.151
rsc_url: https://www.rsc.org/periodic-table/element/26/iron