Properties of arsenic atoms

Ionisation Energies and electron affinity

The electron affinity of arsenic is 78  kJ mol-1. The ionisation energies of arsenic are given below.

Ionisation energy number Enthalpy /kJ mol-1
1st 947.0
2nd 1798
3rd 2735
4th 4837
5th 6043
6th 12310

Ionisation energies of As

Electronic configuration

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

Pointer to The Orbitron gallery of orbitals.

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

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arsenic atomic number