Berkelium
Chemical, physical and material properties and data of the chemical element Berkelium.
General Information about Berkelium
Regular nameBerkeliumChemical symbolBkOther namesSystematic nameHistorical namesName meaning, originDiscovery (year)OccurencePosition in the PSEGroup membership
Atomar Properties of Berkelium
Atomic number Z97 = number of protonsStandard Atomic Weight247.070308541
Electron configuration of Berkelium
| 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 | 10 | 14 | 2 | 6 | 10 | 9 | 2 | 6 | | | 2 | |
Abbreviated form: [Rn] 5f9 7s2 .
Ionization Energies of Berkelium
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 Berkelium atom.
Isotopic Data of Berkelium
An overview of the nuclides as well as the isotopic data and properties are listed on the following page: Berkelium isotopes.
Chemistry of Berkelium
Oxidation states+ 3Electronegativity1.3 (Pauling original)
1.30 (Pauling)Electron affinity-1.72 eV
-165.24 kJ mol-1
Standard Electrode Potential
| E0 (V) | Symbol | Nox | Name Ox.
Name Red. | Ox.
Red. | e- |
|---|
| -2.01 | Bk | +III
0 | Berkelium(III) cation
Berkelium | Bk3+
⇄ Bk (s) | + 3 e- |
Material and Physical Properties
Melting point986 °CEnthalpy of fusion (molar)7.92 kJ mol-1Boiling point2627 °CDensity14.78 g cm-3 (α)
External Data, Identifiers
CAS registry number7440-40-6InChI =1S/BkInChIKeyPWVKJRSRVJTHTR-UHFFFAOYSA-NPubChem ID23971
Last update: 2022-12-05
Perma link: https://www.chemlin.org/chemical-elements/berkelium.php
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