Bohrium
Bohrium General
Name:Bohrium | Symbol:Bh |
Type:Transition metal | Atomic weight:262.12 |
Density @ 293 K:37 g/cm3 (est) | Atomic volume:cm3/mol |
Discovered:
First produced in the USSR in 1976, verified in 1981 at the GSI in Darmstadt, Germany. |
Bohrium States
State (s, l, g):solid | |
Melting point:no data | Boiling point:no data |
Bohrium Energies
Specific heat capacity:J g-1 K-1 | Heat of atomization:kJ mol-1 |
Heat of fusion:kJ mol-1 | Heat of vaporization :kJ mol-1 |
1st ionization energy:kJ mol-1 | 2nd ionization energy:kJ mol-1 |
3rd ionization energy:kJ mol-1 | Electron affinity:kJ mol-1 |
Bohrium Oxidation & Electrons
Shells:2,8,18,32,32,13,2 | Electron configuration:[Rn] 5f14 6d2 7s2 |
Minimum oxidation number: | Maximum oxidation number: |
Min. common oxidation no.: | Max. common oxidation no.: |
Electronegativity (Pauling Scale): | Polarizability volume:Å3 |
Bohrium Appearance & Characteristics
Structure: unknown | Color:steel gray (est) |
Hardness:mohs | |
Harmful effects:
radioactive |
|
Characteristics:
A synthetically made radioactive element. Only a few atoms have ever been produced. Bohrium decays very rapidly through the emission of α-particles Uses: Research interest only |
Bohrium Reactions
Reaction with air: | Reaction with 6 M HCl: |
Reaction with 15 M HNO3: | Reaction with 6 M NaOH: |
Bohrium Compounds
Oxide(s): | Chloride(s): |
Hydride(s): |
Bohrium Radius
Atomic radius:pm | Ionic radius (1+ ion):pm |
Ionic radius (2+ ion):pm | Ionic radius (3+ ion):pm |
Ionic radius (2- ion):pm | Ionic radius (1- ion):pm |
Bohrium Conductivity
Thermal conductivity:W m-1 K-1 | Electrical conductivity:S cm-1 |
Bohrium Abundance & Isotopes
Abundance earth's crust: none | |
Abundance solar system: | |
Cost, pure:$ per 100g | |
Cost, bulk:$ per 100g | |
Source:
Bohrium is produced synthetically by cold fusion. |
|
Isotopes:
Bohrium has three isotopes whose half-lives are known; 261Bh, 262Bh and 264Bh. |
Bohrium Other
Other:
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