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107Bh270.000

Bohrium

Transition Metal

Bohrium 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: Solid
Physical Properties
Atomic Mass270 u
Density37.1 g/cm³
Period7
PhaseSolid
Chemical Properties
Electron Configuration1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d5
Semantic Config*[Rn] 5f14 6d5 7s2
Shells2, 8, 18, 32, 32, 13, 2
Discovery
Discovered byGesellschaft für Schwerionenforschung