atomic_number: 29
symbol: Cu
name: Copper
category: TransMetal
category_label: Transitional Metal
period: 4
group: 11
group_label: 11 IB
block: d
grid_row: 4
grid_col: 11
phase: solid
lab_made: false
radioactive_marker: false
is_radioactive: false
atomic_mass: '63.546'
atomic_mass_value: 63.546
atomic_mass_most_stable_isotope: false
oxidation_states: '*2* 1'
oxidation_states_parsed:
- state: '2'
  common: true
- state: '1'
  common: false
ionization_energy: '7.726'
ionization_energy_ev: 7.726
electron_configuration: '[Ar] 3d^{10}4s^{1}'
electron_configuration_formatted: '[Ar]3d¹⁰4s¹'
electron_configuration_html: '[Ar]3d<sup>10</sup>4s<sup>1</sup>'
atomic_radius: '1.96'
atomic_radius_angstrom: 1.96
electron_affinity: '1.235'
electron_affinity_ev: 1.235
rsc_url: https://www.rsc.org/periodic-table/element/29/copper