meitnerio

Also known as Mt, element 109, unnilennium, Une

elemento chimico con numero atomico 109

AI overview

Meitnerium is a human-made chemical element (atomic number 109) that is so radioactive it breaks down almost instantly, with its most stable form lasting only about 4.5 seconds. Scientists first created it in a German laboratory in 1982 and named it after physicist Lise Meitner to honor her contributions to nuclear science.

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Wikidata facts

Instance of: synthetic element
Part of: group 9
Named after: Lise Meitner

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Commons category: Meitnerium
time of discovery or invention: 1982-08-29
location of discovery: GSI Helmholtz Centre for Heavy Ion Research
topic's main category: Category:Meitnerium
element symbol: Une
atomic number: 109
Commons gallery: Meitnerium
discoverer or inventor: GSI Helmholtz Centre for Heavy Ion Research
Unicode character: 䥑
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4

Sources (2)

via Wikidata · CC0

Article · Italiano

Il meitnerio è l'elemento chimico della tavola periodica, che ha come simbolo Mt e come numero atomico il 109.È un elemento sintetico il cui isotopo più stabile ha un'emivita di 3,4 ms.

Abstract from DBpedia / Wikipedia · CC BY-SA