Properties of iridium atoms

Ionisation Energies and electron affinity

The electron affinity of iridium is 151.0  kJ mol-1. The ionisation energies of iridium are given below.

Ionisation energy number Enthalpy /kJ mol-1
1st 880
2nd 1600

Ionisation energies of Ir

Electronic configuration

The following represents the electronic configuration and its associated term symbol for the ground state neutral gaseous atom. The configuration associated with iridium in its compounds is not necessarily the same.

Pointer to The Orbitron gallery of orbitals.

Kossel shell structure of Ir
A schematic representation of the shell structure of iridium - not what the atom of iridium "looks like".

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iridium atomic number