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 |
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Discovered:
First produced in the USSR in 1976, verified in 1981 at the GSI in Darmstadt, Germany. |
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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 | |
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Harmful effects:
radioactive |
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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 |
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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 | |
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Source:
Bohrium is produced synthetically by cold fusion. |
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Isotopes:
Bohrium has three isotopes whose half-lives are known; 261Bh, 262Bh and 264Bh. |
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Bohrium Other
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Other:
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