Bohrium element isotopes

Bohrium, element 107, has been produced in hot-fusion reactions. The isotopes... 

The most stable isotope of unnilennium is meitnerium-276, which has a half-life of about 0.72 seconds. Une-276 decays into element 107 (Uns-272 or bohrium-272). 

Hassium — (named for the German state, Hesse) Hs at. wt. [277] at. no. 108. This element was first synthesized and identified in 1964 by the same G.S.I. Darmstadt Group who first identified Bohrium and Meitnerium. Presumably this element has chemical properties similar to osmium. Isotope 108 was produced using a beam of Fe projectiles, produced by the Universal Linear Accelerator (UNILAC) to bombard a Pb target. Discovery oiBohrium Bind Meitnerium was made using detection of isotopes with odd proton and neutron numbers. 

Bohrium with the symbol Bh for Element 107 in August 1997. Five isotopes of bohrium are now recognized. One isotope of bohrium appears to have a relatively long life of 15 seconds. Work on this relatively long-lived isotope has been performed with the 88-inch cyclotron at the Lawrence-Berkeley National Laboratory. 

Element 107, now named bohrium, was synthesized by German researchers by colliding bismuth-209 with chromium-54 to form a bohrium isotope and one neutron. Write the nuclear equation to represent this reaction. 

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