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It's Elemental

The Element Meitnerium

[Click for Isotope Data]

Meitnerium

109 Mt Meitnerium 278

Atomic Number: 109

Atomic Weight: 278

Melting Point: Unknown

Boiling Point: Unknown

Density: Unknown

Phase at Room Temperature: Solid

Element Classification: Metal

Period Number: 7

Group Number: 9

Group Name: none

Special Notes: Radioactive and Artificially Produced

What's in a name? Named after the scientist Lise Meitner.

Say what? Meitnerium is pronounced as met-NEAR-ee-um.

History and Uses:

Meitnerium was first produced by Peter Armbruster, Gottfried Münzenber and their team working at the Gesellschaft für Schwerionenforschung in Darmstadt, Germany in 1982. They bombarded atoms of bismuth-209 with ions of iron-58 with a device known as a linear accelerator. This produced atoms of meitnerium-266, an isotope with a half-life of about 3.8 milliseconds (0.0038 seconds), and a free neutron.

Meitnerium's most stable isotope, meitnerium-278, has a half-life of about 8 seconds. It decays into bohrium-274 through alpha decay.

Since only small amounts of meitnerium have ever been produced, it currently has no uses outside of basic scientific research.

Estimated Crustal Abundance: Not Applicable

Estimated Oceanic Abundance: Not Applicable

Number of Stable Isotopes: 0 (View all isotope data)

Ionization Energy: Unknown

Oxidation States: Unknown

Electron Shell Configuration:

1s2

(Unconfirmed)

2s2   2p6

3s2   3p6   3d10

4s2   4p6   4d10   4f14

5s2   5p6   5d10   5f14

6s2   6p6   6d7

7s2

Citation and linking information

For questions about this page, please contact Carol McKisson.