Periodic table of elements

77 - Iridium [Ir]

77: Iridium - Iridium [Ir]
Group: 9
Period: 6
Atomic number: 77
Atomic mass: 192.217
Configuration: [Xe] 4f145d76s2
Atomic radius: 180 pm
Covalent radius: 141 pm
Electron affinity: 151 eV
Ionization energy: 8.967 eV
Electronic term: 4F9/2
Mass fraction in the earth crust: 0.0000000004
Mass fraction in the earth space: 0.000000002
Electronegativity: 2.2

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