🔬 Discovery

Meitnerium

Meitnerio (Mt, Z=109)

Date
1982 · confidence high
Place
GSI, Darmstadt, Germany
Credited to
Peter Armbruster and Gottfried Münzenberg (GSI)
People
👤 Gottfried Münzenberg1940–2024👤 Peter Armbruster1931–2024
Field
Matter & energy

What was discovered

A single atom of Mt-266 identified in 1982 by fusing iron-58 with bismuth-209; named after Lise Meitner.

The only element named after a non-mythological woman (along with the shared curium).

What it led to

  • Discovery of an element from a single atom
  • Recognition of Lise Meitner
  • Extension of the d-block to group 9

Built on

  • UNILAC and SHIP
  • Cold fusion

Made possible

  • Identification by decay chain of an atom

Links