Properties of thorium atoms

Ionisation Energies and electron affinity

The electron affinity of thorium is no data  kJ mol-1. The ionisation energies of thorium are given below.

Ionisation energy number Enthalpy /kJ mol-1
1st 587
2nd 1110
3rd 1930
4th 2780

Ionisation energies of Th

Electronic configuration

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

Pointer to The Orbitron gallery of orbitals.

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

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thorium atomic number