Francium
Chemical, physical and material properties and data of the chemical element Francium.
Contents
General Information about Francium
Regular nameFranciumChemical symbolFrOther namesHistorical namesName meaning, originDiscovery (year)OccurencePosition in the PSEGroup membership
Atomar Properties of Francium
Electron configuration of Francium
| 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 | | 2 | 6 | | | 1 | |
Shorthand electron configuration of Francium: [Rn] 7s1 .
Ionization Energies of Francium
The following table lists the ionization energies IE (ionization potentials); the IE is the energy required in electron volt (eV) per atom to separate a given electron from an Francium atom.
Isotopic Data of Francium
An overview of the nuclides as well as the isotopic data and properties are listed on the following page: Francium isotopes.
Chemistry of Francium
Material and Physical Properties
Melting point21 °CEnthalpy of fusion (molar)~ 2 kJ mol-1Boiling point620 °CEnthalpy of vaporizationca. 65 kJ mol-1Density2.84 g cm-3
External Data, Identifiers
CAS registry number7440-73-5InChI =1S/FrInChIKeyKLMCZVJOEAUDNE-UHFFFAOYSA-NPubChem ID6328145
Last update: 2022-12-12
Perma link: https://www.chemlin.org/chemical-elements/francium.php
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