Meitnerium
109
Mt
Gruppe
9
Periode
7
Blok
d
Protoner
Elektroner
Neutroner
109
109
159
Generelle Egenskaber
Atomnummer
109
Atommasse
[278]
Masseantal
268
Kategori
Overgangsmetaller
Farve
n/a
Radioaktiv
Ja
Named after Lise Meitner, the Austrian physicist
Krystalstruktur
n/a
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 i hver skal
2, 8, 18, 32, 32, 15, 2
Elektronkonfiguration
[Rn] 5f14 6d7 7s2
Meitnerium has 7 isotopes whose half-lives are known
Fysiske Egenskaber
Tilstandsform
Fast stof
Massefylde
35 g/cm3
Smeltepunkt
-
Kogepunkt
-
Smeltevarme
n/a
Fordampningsvarme
n/a
Varmefylde
-
Forekomst i jordskorpen
n/a
Forekomst i universet
n/a
Billede akkrediteringer: Wikimedia Commons (Commander-pirx)
The element was discovered at the Institute for Heavy Ion Research in Darmstadt, Germany
CAS-nummer
54038-01-6
PubChem CID-nummer
n/a
Atomare egenskaber
Atomradius
-
Kovalent radius
129 pm
Elektronegativitet
-
Ioniseringspotentiale
-
Atomvolumen
-
Varmeledningsevne
-
Oxidationstrin
3, 4, 6
Anvendelser
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