Europium

Properties of europium atoms

Ionisation Energies and electron affinity

The electron affinity of europium is 50  kJ mol^-1. The ionisation energies of europium are given below.

Electronic configuration

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

• Ground state electron configuration:  [Xe].4f⁷.6s²
• Shell structure:  2.8.18.25.8.2
• Term symbol:   ⁸S_7/2

A schematic representation of the shell structure of europium - not what the atom of europium "looks like".

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