Bohrium is a chemical element with symbol Bh and atomic number 107, named in honor of 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.Symbol: Bh
Discovered: 1981
Atomic number: 107
CAS ID: 54037-14-8
Van der Waals radius: 200 pm
Atomic mass: 264 u