Properties

Atomic Number	107
CAS Registry Number	54037-14-8
Chemical Symbol	Bh

History

The atomic number is 107 and the chemical symbol is Bh. The name derives from the Danish physicist Niels Bohr who developed the theory of the electronic structure of the atom. The first synthesis of this element is credited to the laboratory of the GSI (Center for Heavy-Ion Research) under the leadership of the German scientists Peter Armbruster and Gunther Miinzenberg at Darmstadt Germany in 1981 using the reaction 209Bi( 54Cr n) 262Bh. The longest half-life associated with this unstable element is 17 second 267Bh.

Holden, Norman E., (2004). History of the origin of the chemical elements and their discoverers. National Nuclear Data Center. Retrieved from http://www.nndc.bnl.gov/content/elements.html