Properties of oxygen atoms

Atom icon

The electron affinity of oxygen is 141  kJ mol-1.

Ionisation Energies

This section includes ionisation energies of oxygen.

Ionisation energy number Enthalpy /kJ mol-1
1st 1313.9
2nd 3388.3
3rd 5300.5
4th 7469.2
5th 10989.5
6th 13326.5
7th 71330
8th 84078.0

Ionisation energies of O

Electronic configuration

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

Pointer to The Orbitron gallery of orbitals.

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

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oxygen atomic number