<P> Bohrium is a synthetic chemical element with symbol Bh and atomic number 107 . It is named after Danish physicist Niels Bohr . As a synthetic element , it can be created in a laboratory but is not found in nature . It is radioactive : its most stable known isotope , Bh , has a half - life of approximately 61 seconds , though the unconfirmed Bh may have a longer half - life of about 690 seconds . </P>
iupac name of element with atomic number 107
Bohrium