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Atomic Number : 109Atomic symbolisation : MtAtomic Weight : [ 278]Melting compass point : UnknownBoiling degree : Unknown
Word stock : Meitnerium is named for scientist Lise Meitner .
Meitnerium
Discovery : The element was discovered in Darmstadt , Germany , in 1982 at Heavy Ion Laboratory . The squad of Peter Armbruster and Gottfried Münzenber first produced and identified it . This experiment was significant because , in addition to create a new element , it demonstrated the feasibleness of using fusion to make new , heavy nuclei .
place of meitnerium
Meitnerium is a radioactive , synthetical component about which minuscule is known . It is classify as a metal and is a solid at elbow room temperature .
Meitnerium has seven isotopes with known half - lives . The most static is meitnerium-278 ( 278Mt ) , with a half - life of about eight seconds . It decay intobohrium-274 ( 274Bh)through alpha decline .
The atomic free weight for manmade transuranium elements is based on the longest - live isotope . These nuclear weights should be considered provisional since a new isotope with a long half - spirit could be bring forth in the future . [ SeePeriodic board of the ingredient ]
Sources of meitnerium
Mt is produced by artificial means . It can be made by pelt atoms ofbismuth-209 ( 209Bi)with ions ofiron-58 ( 58Fe)using a linear throttle . Armbruster and Münzenber bombarded their prey for a week so as to produce a fused nucleus .
use of meitnerium
Only little amounts of meitnerium have ever been made . presently , it is only used in scientific cogitation .
( Sources : Los Alamos National Laboratory , Jefferson Lab )
