Properties of phosphorus atoms

Ionisation Energies and electron affinity

The electron affinity of phosphorus is 72  kJ mol-1. The ionisation energies of phosphorus are given below.

Ionisation energy number Enthalpy /kJ mol-1
1st 1011.8
2nd 1907
3rd 2914.1
4th 4963.6
5th 6273.9
6th 21267
7th 25431
8th 29872
9th 35905
10th 40950
11th 46261
12th 54110
13th 59024
14th 271790
15th 296194

Ionisation energies of P

Electronic configuration

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

Pointer to The Orbitron gallery of orbitals.

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

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phosphorus atomic number