Bh
Bohrium · element 107
Transition Metal · Solid at room temperature
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.
Key facts
Atomic mass
270 u
how heavy one atom is
Phase (room temp.)
Solid
Density
37.1 g/cm³
how tightly packed it is
Period
7
its row in the periodic table
Group
7
its column in the periodic table
Block
D-block
the neighbourhood it lives in
Electron configuration
*[Rn] 5f14 6d5 7s2
where its electrons live
Shells
2 · 8 · 18 · 32 · 32 · 13 · 2
electrons in each layer, inside to out
Discovered by
Gesellschaft für Schwerionenforschung
who found it
Source: Wikipedia