Properties of rubidium atoms

Ionisation Energies and electron affinity

The electron affinity of rubidium is 46.9  kJ mol-1. The ionisation energies of rubidium are given below.

Ionisation energy number Enthalpy /kJ mol-1
1st 403.0
2nd 2633
3rd 3860
4th 5080
5th 6850
6th 8140
7th 9570
8th 13120
9th 14500
10th 26740

Ionisation energies of Rb

Electronic configuration

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

Pointer to The Orbitron gallery of orbitals.

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

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rubidium atomic number