Unnilpentium, also known as element 105 on the periodic table, is a transuranic element with the symbol Db. This element was first synthesized in 1961 and named after Danish physicist Niels Bohr. Unnilpentium can be described using various synonyms such as dubnium, Bohrium, element 105, or Db. This radioactive metal is a member of the actinide series and is highly unstable, with its most stable isotope having a half-life of just a few hours. Despite its unstable nature, unnilpentium has been used in various scientific research studies relating to nuclear physics and chemistry. The use of synonyms helps to simplify the language used in scientific research and makes it easier for other researchers to understand.