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Meitniriam

WD Bosca Sonraí Dúil CheimiceachMeitniriam
Substaint cheimiceachdúil cheimiceach agus dúile sintéiseacha
Meitniriam sa tábla peiriadach
Siombail cheimiceachMt agus Une
Uimhir adamhach109
Peiriad, Grúpapeiread 7
grúpa 9
Airíonna fisiceacha
Dlúskg/m⁻³
Stair
AimsitheoirGSI Helmholtz Centre for Heavy Ion Research (en) Aistrigh
Fionnachtain29 Lúnasa 1982
EapainmLise Meitner

Is é an meitniriam dúil cheimiceach uimhir a 109 i dtábla peiriadach na ndúl agus is í an tsiombail cheimiceach a sheasann dó ná Mt. Tá sé suite taobh thíos den iridiam sa tábla peiriadach, is é sin, sa naoú grúpa, ach is deacair a rá an bhfuil saintréithe ceimiceacha an mheitniriam cosúil leis an iridiam ar aon nós, nó is dúil radaighníomhach é a dtagann meath uirthi chomh luath is nach féidir mórán a fháil amach faoi iompraíocht cheimiceach na dúile. Is é an t-iseatóp is cobhsaí atá ag an meitniriam ná Mt-278, agus déanann maisuimhir an iseatóip sin gnó an mheáchain adamhaigh don mheitniriam.

Ba iad Peter Armbruster agus Gottfried Münzenberg a bhí i gceannas ar an bhfoireann in Darmstadt sa Ghearmáin, san Institiúid um Thaighde ar na hIain Throma, a ghin an chéad adamh meitniriam. An t-ainm atá ar an dúil inniu, is tagairt é do Lise Meitner, agus dheimhnigh Aontas Idirnáisiúnta na gCeimiceoirí (IUPAC) é sa bhliain 1997.

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Meitniriam
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