Yttrium
Chemical, physical and material properties and data of the chemical element Yttrium.
General Information about Yttrium
Regular nameYttriumChemical symbolYOther namesSystematic nameHistorical namesName meaning, originDiscovery (year)OccurencePosition in the PSEGroup membership
Atomar Properties of Yttrium
Atomic number Z39 = number of protonsStandard Atomic Weight88.90584 (1)
Electron configuration of Yttrium
| 1s | 2s | 2p | 3s | 3p | 3d | 4s | 4p | 4d | 4f | 5s | 5p | 5d | 5f | 6s | 6p | 6d | 6f | 7s | 7p |
|---|
| 2 | 2 | 6 | 2 | 6 | 10 | 2 | 6 | 1 | | 2 | | | | | | | | | |
Abbreviated form: [Kr] 4d1 5s2 .
Ionization Energies of Yttrium
The following table lists the ionization energies IE (ionization potentials); the IE is the energy required in electron volts (eV) per atom to separate a given electron from an Yttrium atom.
| IE1 | IE2 | IE3 | IE4 | IE5 | IE6 | IE7 | IE8 |
|---|
| 6.2173 | 12.224 | 20.52 | 60.597 | 77.0 | 93.0 | 116 | 129 |
Isotopic Data of Yttrium
An overview of the nuclides as well as the isotopic data and properties are listed on the following page: Yttrium isotopes.
Chemistry of Yttrium
Oxidation states+3Electronegativity1.2 (Pauling original)
1.22 (Pauling)
1.12 (Allen)
1.4 (Mulliken)
0.98 (Sanderson)
1.11 (Allred-Rochow)
2.7237 eV (Gosh Gupta)
3.19 eV (Pearson)Electron affinity0.307(12) eV
29.6(12) kJ mol-1
Standard Electrode Potential
| E0 (V) | Symbol | Nox | Name Ox.
Name Red. | Ox.
Red. | e- |
|---|
| -2.372 | Y | + III
0 | Yttrium(III) cation
Yttrium | Y3+
⇄ Y (s) | + 3 e- |
Material and Physical Properties
Melting point1522 °CEnthalpy of fusion (molar)11.42 kJ mol-1Boiling point2930 °CEnthalpy of vaporization393.3 kJ mol-1Density4.472 g cm-3
External Data, Identifiers
CAS registry number7440-65-5InChI =1S/YInChIKeyVWQVUPCCIRVNHF-UHFFFAOYSA-NPubChem ID23993
Last update: 2022-12-12
Perma link: https://www.chemlin.org/chemical-elements/yttrium.php
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