Properties of terbium atoms

Ionisation Energies and electron affinity

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

Ionisation energy number Enthalpy /kJ mol-1
1st 565.8
2nd 1110
3rd 2114
4th 3839

Ionisation energies of Tb

Electronic configuration

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

Pointer to The Orbitron gallery of orbitals.

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

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terbium atomic number