Bohrium
107
Bh
Gruppe
7
Periode
7
Blokk
d
Protoner
Elektroner
Nøytroner
107
107
157
Generelle egenskaper
Atomnummer
107
Atomvekt
[270]
Massetall
264
Kategori
Transisjonsmetaller
Farge
I/T
Radioaktiv
Ja
Named after Niels Bohr, the Danish physicist
Krystallstruktur
I/T
Historie
Bohrium was first convincingly synthesized in 1981 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 chromium-54 to produce 5 atoms of the isotope bohrium-262.
The team bombarded a target of bismuth-209 with accelerated nuclei of chromium-54 to produce 5 atoms of the isotope bohrium-262.
Elektroner per energinivå
2, 8, 18, 32, 32, 13, 2
Elektronkonfigurasjon
[Rn] 5f14 6d5 7s2
The only confirmed example of isomerism in bohrium is in the isotope 262Bh
Fysikalske egenskaper
Fase
Fast stoff
Tetthet
37 g/cm3
Smeltepunkt
-
Kokepunkt
-
Smeltevarme
I/T
Fordampningsvarme
I/T
Spesifikk varmekapasitet
-
Forekomst i jordskorpa
I/T
Forekomst i universet
I/T
CAS Number
54037-14-8
PubChem CID Number
I/T
Atomegenskaper
Atomradius
-
Kovalent radius
141 pm
Elektronegativitet
-
Ioniseringsenergi
-
Molart volum
-
Termisk ledningsevne
-
Oksidasjonstilstander
7
Bruksområder
Bohrium is used for scientific research purposes only.
Bohrium is harmful due to its radioactivity
Isotoper
Stabile isotoper
-Ustabile isotoper
260Bh, 261Bh, 262Bh, 263Bh, 264Bh, 265Bh, 266Bh, 267Bh, 268Bh, 269Bh, 270Bh, 271Bh, 272Bh, 273Bh, 274Bh, 275Bh