Meitnerium

Chemical, physical and material properties and data of the chemical element Meitnerium.

Contents

General Information about Meitnerium

Regular nameMeitneriumChemical symbolMtOther namesHistorical namesName meaning, originDiscovery (year)OccurencePosition in the PSEGroup membership

Atomar Properties of Meitnerium

Atomic number Z109 = number of protonsStandard Atomic Weight278.15631 (68)

Electron configuration of Meitnerium

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	14	2	6	7		2

Shorthand electron configuration of Meitnerium: [Rn] 5f¹⁴ 6d⁷ 7s² .

Ionization Energies of Meitnerium

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 Meitnerium atom.

IE1	IE2	IE3	IE4	IE5
8.29	18.56	30.04	40.40	50.76

Isotopic Data of Meitnerium

An overview of the nuclides as well as the isotopic data and properties are listed on the following page: Meitnerium isotopes.

Chemistry of Meitnerium

Oxidation states+ 3. + 4. + 6

Material and Physical Properties

Density37.4 g cm^-3

External Data, Identifiers

CAS registry number54038-01-6InChI =1S/MtInChIKeyVAJSJTKWMRUWBF-UHFFFAOYSA-NPubChem ID56951716

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isotopes

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Last update: 2022-12-12

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