Properties of lutetium atoms

Ionisation Energies and electron affinity

The electron affinity of lutetium is 33 kJ mol-1. The ionisation energies of lutetium are given below.

Ionisation energy number Enthalpy /kJ mol-1
1st 523.5
2nd 1340
3rd 2022.3
4th 4370
5th 6445

Ionisation energies of Lu

Electronic configuration

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

Pointer to The Orbitron gallery of orbitals.

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

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lutetium atomic number