Properties of yttrium atoms

Ionisation Energies and electron affinity

The electron affinity of yttrium is 29.6  kJ mol-1. The ionisation energies of yttrium are given below.

Ionisation energy number Enthalpy /kJ mol-1
1st 600
2nd 1180
3rd 1980
4th 5847
5th 7430
6th 8970
7th 11190
8th 12450
9th 14110
10th 18400
11th 19900
12th 36090

Ionisation energies of Y

Electronic configuration

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

Pointer to The Orbitron gallery of orbitals.

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

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yttrium atomic number