Rubidium

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.

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.

• Ground state electron configuration:  [Kr].5s¹
• Shell structure:  2.8.18.8.1
• Term symbol:   ²S_1/2

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

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