Meitnerium
109
Mt
Gruppe
9
Periode
7
Blokk
d
Protoner
Elektroner
Nøytroner
109
109
159
Generelle egenskaper
Atomnummer
109
Atomvekt
[278]
Massetall
268
Kategori
Transisjonsmetaller
Farge
I/T
Radioaktiv
Ja
Named after Lise Meitner, the Austrian physicist
Krystallstruktur
I/T
Historie
Meitnerium was first synthesized in 1982 by a German research team led by Peter Armbruster and Gottfried Münzenberg at the Institute for Heavy Ion Research (Gesellschaft für Schwerionenforschung) in Darmstadt.
The team bombarded a target of bismuth-209 with accelerated nuclei of iron-58 and detected a single atom of the isotope meitnerium-266.
The team bombarded a target of bismuth-209 with accelerated nuclei of iron-58 and detected a single atom of the isotope meitnerium-266.
Elektroner per energinivå
2, 8, 18, 32, 32, 15, 2
Elektronkonfigurasjon
[Rn] 5f14 6d7 7s2
Meitnerium has 7 isotopes whose half-lives are known
Fysikalske egenskaper
Fase
Fast stoff
Tetthet
35 g/cm3
Smeltepunkt
-
Kokepunkt
-
Smeltevarme
I/T
Fordampningsvarme
I/T
Spesifikk varmekapasitet
-
Forekomst i jordskorpa
I/T
Forekomst i universet
I/T
Bildekreditter: Wikimedia Commons (Commander-pirx)
The element was discovered at the Institute for Heavy Ion Research in Darmstadt, Germany
CAS Number
54038-01-6
PubChem CID Number
I/T
Atomegenskaper
Atomradius
-
Kovalent radius
129 pm
Elektronegativitet
-
Ioniseringsenergi
-
Molart volum
-
Termisk ledningsevne
-
Oksidasjonstilstander
3, 4, 6
Bruksområder
Meitnerium is used for scientific research purposes only.
Meitnerium is harmful due to its radioactivity
Isotoper
Stabile isotoper
-Ustabile isotoper
265Mt, 266Mt, 267Mt, 268Mt, 269Mt, 270Mt, 271Mt, 272Mt, 273Mt, 274Mt, 275Mt, 276Mt, 277Mt, 278Mt, 279Mt