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Bohrium General

Name:Bohrium Symbol:Bh
Type:Transition metal Atomic weight:262.12
Density @ 293 K:37 g/cm3 (est) Atomic volume:cm3/mol

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)
Harmful effects:



A synthetically made radioactive element. Only a few atoms have ever been produced. Bohrium decays very rapidly through the emission of α-particles


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):

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

Bohrium is produced synthetically by cold fusion.


Bohrium has three isotopes whose half-lives are known; 261Bh, 262Bh and 264Bh.

Bohrium Other



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