Iridium
Atom properties
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REAL
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Radii
Van der Waals atomic radius (pm):
202 [6]
Empirical atomic radius (pm):
135 [6]
Covalent atomic radius (pm):
141(6) [6]
Ionic radius (Å):
Ir(V): 0.57 (6-coordinate) [1]
Ir(IV): 0.625 (6-coordinate) [1]
Ir(III): 0.68 (6-coordinate) [1]
Electronegativity
Pauling Scale:
2.2 [6]
Allen Scale:
1.68 [6]
Electron binding forces
Electron Affinity (eV):
1.565 [6]
Ionization Energy (eV):
9.1 [6]
Electron configuration
Ground state:
1s
2
-2s
2
-2p
6
-3s
2
-3p
6
-3d
10
-4s
2
-4p
6
-4d
10
-4f
14
-5s
2
-5p
6
-5d
7
-6s
2
[6]
