Röntgenium

111
Rg
Grupp
11
Period
7
Block
d
Protoner
Elektroner
Neutroner
111
111
170
Generella Egenskaper
Atomnummer
111
Atommassa
[281]
Masstal
281
Kategori
Övergångsmetaller
Färg
n/a
Radioaktiv
Ja
Named after Wilhelm Conrad Röntgen, the German physicist
Kristallstruktur
n/a
Historia
Roentgenium was first synthesized by an international team led by Sigurd Hofmann at the Institute for Heavy Ion Research (Gesellschaft für Schwerionenforschung) in Darmstadt, Germany in 1994.

The team bombarded a target of bismuth-209 with accelerated nuclei of nickel-64 and detected a single atom of the isotope roentgenium-272.
Elektroner per skal
2, 8, 18, 32, 32, 17, 2
Elektronkonfiguration
[Rn] 5f14 6d9 7s2
Rg
Roentgenium has no stable or naturally-occurring isotopes
Fysikaliska Egenskaper
Aggregationstillstånd
Fast
Densitet
-
Smältpunkt
-
Kokpunkt
-
Smältvärme
n/a
Ångbildningsvärme
n/a
Specifik värmekapacitet
-
Abundance in Earth's crust
n/a
Abundance in Universe
n/a
The
Bildkrediter: Wikimedia Commons (Commander-pirx)
The element was discovered at the Institute for Heavy Ion Research in Darmstadt, Germany
CAS Number
54386-24-2
PubChem CID Number
n/a
Atomära Egenskaper
Atomradie
-
Kovalent radie
121 pm
Elektronegativitet
-
Jonisationspotential
-
Molvolym
-
Värmeledningsförmåga
-
Oxidationstillstånd
-1, 1, 3, 5
Användningsområden
Roentgenium is used for scientific research purposes only.
Roentgenium is harmful due to its radioactivity
Isotoper
Stabila isotoper
-
Instabila isotoper
272Rg, 273Rg, 274Rg, 275Rg, 276Rg, 277Rg, 278Rg, 279Rg, 280Rg, 281Rg, 282Rg, 283Rg