atomic_number: 40
symbol: Zr
name: Zirconium
category: TransMetal
category_label: Transitional Metal
period: 5
group: 4
group_label: 4 IVB
block: d
grid_row: 5
grid_col: 4
phase: solid
lab_made: false
radioactive_marker: false
is_radioactive: false
atomic_mass: '91.224'
atomic_mass_value: 91.224
atomic_mass_most_stable_isotope: false
oxidation_states: '*4*'
oxidation_states_parsed:
- state: '4'
  common: true
ionization_energy: '6.634'
ionization_energy_ev: 6.634
electron_configuration: '[Kr] 4d^{2}5s^{2}'
electron_configuration_formatted: '[Kr]4d²5s²'
electron_configuration_html: '[Kr]4d<sup>2</sup>5s<sup>2</sup>'
atomic_radius: '2.23'
atomic_radius_angstrom: 2.23
electron_affinity: '0.426'
electron_affinity_ev: 0.426
rsc_url: https://www.rsc.org/periodic-table/element/40/zirconium