Periodic table of elements

26 - Iron [Fe]

26: Iron - Ferrum [Fe]
Group: 8
Period: 4
Atomic number: 26
Atomic mass: 55.845
Configuration: [Ar] 3d64s2
Atomic radius: 156 pm
Covalent radius: 132 pm
Electron affinity: 15.7 eV
Ionization energy: 7.9024 eV
Electronic term: 5D4
Mass fraction in the earth crust: 0.063
Mass fraction in the earth space: 0.0011
Electronegativity: 1.83

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