Properties of cobalt atoms

Ionisation Energies and electron affinity

The electron affinity of cobalt is 63.7  kJ mol-1. The ionisation energies of cobalt are given below.

Ionisation energy number Enthalpy /kJ mol-1
1st 760.4
2nd 1648
3rd 3232
4th 4950
5th 7670
6th 9840
7th 12440
8th 15230
9th 17959
10th 26570
11th 29400
12th 32400
13th 36600
14th 39700
15th 42800
16th 49396
17th 52737
18th 134810
19th 145170
20th 154700
21st 167400

Ionisation energies of Co

Electronic configuration

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

Pointer to The Orbitron gallery of orbitals.

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

WebElements Shop

WebElements now has a WebElements shop at which you can buy periodic table posters, mugs, T-shirts, games, fridge magnets, molecular models, and more.

Periodic Table fridge magnets Periodic Table fridge magnets
Buy our periodic table fridge magnets here

WebElements poster Periodic table t-shirts Periodic table mouse mats Molymod molecular model kits Chemistry educational resources

cobalt atomic number