Bohrium

107
Bh
Gruppe
7
Periode
7
Blok
d
Protons
Electrons
Neutrons
107
107
157
General Properties
Atomnummer
107
Atommasse
[270]
Mass Number
264
Kategori
Overgangsmetaller
Farve
n/a
Radioactive
Ja
Named after Niels Bohr, the Danish physicist
Krystalstruktur
n/a
History
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.
Elektroner i hver skal
2, 8, 18, 32, 32, 13, 2
Elektronkonfiguration
[Rn] 5f14 6d5 7s2
Bh
The only confirmed example of isomerism in bohrium is in the isotope 262Bh
Physical Properties
Tilstandsform
Fast stof
Massefylde
37 g/cm3
Smeltepunkt
-
Kogepunkt
-
Smeltevarme
n/a
Fordampningsvarme
n/a
Varmefylde
-
Abundance in Earth's crust
n/a
Abundance in Universe
n/a
The
Billede akkrediteringer: skepticism.org
The element is named after Niels Bohr, a Danish nuclear physicist
CAS Number
54037-14-8
PubChem CID Number
n/a
Atomic Properties
Atomradius
-
Kovalent radius
141 pm
Elektronegativitet
-
Ionization Potential
-
Atomic Volume
-
Varmeledningsevne
-
Oxidationstrin
7
Applications
Bohrium is used for scientific research purposes only.
Bohrium is harmful due to its radioactivity
Isotoper
Stable Isotopes
-
Unstable Isotopes
260Bh, 261Bh, 262Bh, 263Bh, 264Bh, 265Bh, 266Bh, 267Bh, 268Bh, 269Bh, 270Bh, 271Bh, 272Bh, 273Bh, 274Bh, 275Bh