Technetium

Properties of technetium atoms

Ionisation Energies and electron affinity

The electron affinity of technetium is 53  kJ mol^-1. The ionisation energies of technetium 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 technetium in its compounds is not necessarily the same.

• Ground state electron configuration:  [Kr].4d⁶.5s¹
• Shell structure:  2.8.18.14.1
• Term symbol:   ⁶S_5/2

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

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