Bohrium
. Bohrium, symbol Bh, chemical element with atomic number 107. It is produced artificially by nuclear fusion (in which an element with larger atoms is produced by fusing together smaller atoms of other elements ). Each bohrium atom has a very large nucleus, or central mass, containing positively charged particles called protons and neutral particles called neutrons . The large number of particles in the nucleus makes the atom unstable and causes the atom to split apart into smaller components soon after it is created. The International Union of Pure and Applied Chemistry named element 107 bohrium (Bh), which was previously called unnilseptium, to honor Danish physicist and Nobel laureate Niels Bohr , who made important contributions to nuclear physics and the understanding of atomic structure. Bohrium has the atomic number 107, which means that each bohrium atom contains 107 protons in the nucleus. Scientists have created several isotopes of bohrium, or forms of the element that con