Meitnerium (Mt)
"The Fissionary, a hero named to honor the brilliant female physicist who co-discovered nuclear fission but was overlooked for a Nobel Prize."
A memorable persona to anchor Mt in your mind.
37.4
Grams per cm³
N/A
Celsius (°C)
N/A
Radius (pm)
Daily Life Link
Meitnerium has no everyday connection, used only in research.
Discovery & History
Year Discovered
1982
Discovered By
GSI Helmholtz Centre for Heavy Ion Research
Origin of Name
"Meitnerium is named for the Austrian physicist Lise Meitner."
Technical Properties
Atomic Mass
[278] u
Standard State
solid
Boiling Point
N/A
Electron Configuration
[Rn] 5f146d77s2
1st Ionization Energy
N/A
Electron Affinity
N/A
Oxidation States
"Meitnerium is a synthetic, highly radioactive element."
Did You Know?
It is named in honor of Lise Meitner, the Austrian-Swedish physicist who was a pioneer in nuclear physics and a co-discoverer of nuclear fission.
The naming of the element after Meitner was seen as a long-overdue honor for a brilliant scientist who was overlooked for the Nobel Prize for the discovery of fission.
It was created by bombarding a bismuth-209 target with iron-58 ions. The first synthesis produced only a single atom.
It is a member of Group 9 and is expected to be a very dense, solid metal at room temperature.