Symbol	Bh
Atomic number	107
Group	7 (Manganese group)
Period	7
Block	d
Classification	Transition Metal

Appearance	-
Color	-

Number of protons	107 p+
Number of neutrons	163 n0
Number of electrons	107 e-

From Wikipedia, the free encyclopediaBohrium is a chemical element with symbol Bh and atomic number 107. It is named after Danish physicist Niels Bohr. It is a synthetic element (an element that can be created in a laboratory but is not found in nature) and radioactive; the most stable known isotope, 270Bh, has a half-life of approximately 61 seconds.

Phase at STP	Solid
Density	37.1 g/cm3
Atomic weight	270.133 u

Melting point	-
Boiling point	-
Heat of vaporization	-

Electronegativity (Pauling Scale)	-
Electron affinity	-
Oxidation states	(+3), (+4), (+5), +7 (parenthesized: prediction)
Ionization energies	742.9 kJ/mol 1688.5 kJ/mol 2566.5 kJ/mol 3598.9 kJ/mol 4727.8 kJ/mol 5991.7 kJ/mol 7226.8 kJ/mol

Electron configuration Shorthand configuration	[Rn] 5f14 6d5 7s2
Electron configuration Full configuration	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d5 7s2
Electron configuration chart	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d5 7s2
Electrons per shell	2, 8, 18, 32, 32, 13, 2
Valence electrons	2
Valency electrons	7
Bohr model	Figure: Shell diagram of Bohrium (Bh) atom.
Orbital Diagram 1s 2s 2p 3s 3p 3d 4s 4p 4d 4f 5s 5p 5d 5f 6s 6p 6d 7s

Discovery

Gesellschaft für Schwerionenforschung (1981)

CAS Number	54037-14-8
ChemSpider ID	-
EC number	-
PubChem CID Number	56951713