Roentgenium

Properties of roentgenium atoms

Ionisation Energies and electron affinity

The electron affinity of roentgenium is no data  kJ mol^-1. The ionisation energies of roentgenium 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 roentgenium in its compounds is not necessarily the same.

• Ground state electron configuration:  [Rn].5f¹⁴.6d¹⁰.7s¹ (a guess based upon that of gold)
• Shell structure:  2.8.18.32.32.18.1
• Term symbol:   ²S_1/2 (a guess based upon guessed electronic structure)

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

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