The chemical symbol for Bohrium is Bh and its atomic number is 107.
We find it listed in the periodic table of elements in group 7 and 7 period and block.
The Bohrium belongs to the family of transition metals such as for example the Silver, Cadmium, Chromium, ...
This element is Radioactive.
Bohrium was named after Niels Bohr.
Atomic number (Z) 107
Group, block group 7, d-block
Period: period 7
Element category: transition metal
Standard atomic weight (Ar) [270]
Electron configuration: [Rn] 5f14 6d5 7s2 (calculated)
per shell: 2, 8, 18, 32, 32, 13, 2 (predicted)
Physical properties
Phase: solid (predicted)
Density near r.t. : 37.1 g/cm3 (predicted)
Atomic properties
Oxidation states: 7, (5), (4), (3) (parenthesized oxidation states are predictions)
Ionization energies 1st: 742.9 kJ/mol
2nd: 1688.5 kJ/mol
3rd: 2566.5 kJ/mol (all estimated)
Atomic radius empirical: 128 pm (predicted)
Covalent radius: 141 pm (estimated)
Crystal structure: hexagonal close-packed (predicted)
CAS Number: 54037-14-8