โ–ธโ–ธ
  • ๐Ÿ‡ฌ๐Ÿ‡ง Meitnerium
  • ๐Ÿ‡จ๐Ÿ‡ณ ไฅ‘
  • ๐Ÿ‡ณ๐Ÿ‡ฑ Meitnerium
  • ๐Ÿ‡ซ๐Ÿ‡ท Meitnerium
  • ๐Ÿ‡ฉ๐Ÿ‡ช Meitnerium
  • ๐Ÿ‡ฎ๐Ÿ‡ฑ ืžื™ื˜ื ืจื™ื•ื
  • ๐Ÿ‡ฎ๐Ÿ‡น Meitnerio
  • ๐Ÿ‡ฏ๐Ÿ‡ต ใƒžใ‚คใƒˆใƒใƒชใ‚ฆใƒ 
  • ๐Ÿ‡ต๐Ÿ‡น Meitnerio
  • ๐Ÿ‡ท๐Ÿ‡บ ะœะตะนั‚ะฝะตั€ะธะน
  • ๐Ÿ‡ช๐Ÿ‡ธ Meitnerio
  • ๐Ÿ‡ธ๐Ÿ‡ช Meitnerium

Meitnerium: historical information

  • Discoveror: Peter Armbruster, Gottfried Münzenber and their co-workers.
  • Place of discovery: Gesellschaft für Schwerionenforschung (GSI) in Darmstadt, Germany.
  • Date of discovery: 1982
  • Origin of name : named after Lise "Meitner", the Austrian physicist.

In August 1982 the first atom of the element meitnerium with atomic number 109 was detected at the Gesellschaft für Schwerionenforschung (GSI) in Darmstadt, Germany. The isotope of element 109 which was discovered has an atomic mass number of 266 (that is, 266 times heavier than hydrogen). The new element was produced by fusing an iron (58Fe) and a bismuth atom (209Bi) together in a reaction that produces a neutron. This was achieved by accelerating the iron atoms to a high energy in the heavy ion accelerator UNILAC at GSI.