Thallium

Properties of thallium atoms

The electron affinity of thallium is 19.2  kJ mol^-1.

Ionisation Energies

This section includes ionisation energies of thallium.

Electronic configuration

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

• Ground state electron configuration:  [Xe].4f¹⁴.5d¹⁰.6s².6p¹
• Shell structure:  2.8.18.32.18.3
• Term symbol:   ²P_1/2

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

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