Protactinium

Properties of protactinium atoms

The electron affinity of protactinium is no data  kJ mol^-1.

Ionisation Energies

This section includes ionisation energies of protactinium.

Electronic configuration

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

• Ground state electron configuration:  [Rn].5f².6d¹.7s²
• Shell structure:  2.8.18.32.20.9.2
• Term symbol:   ⁴K_11/2

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

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