Dubnium (atomic number 105, symbol Db), is a synthetic chemical element, and its most stable isotope which is dubnium-268, has a half-life of approximately 28 to 30 hours.
At the moment, the chemical properties of unnilpentium are only partially known to scientists, however, they do believe the element will have properties similar to those of other Group 5 elements of the Periodic Table. Currently, the boiling and melting point, as well as the density are still unknown. According to the element classification, Db or Unp is a radioactive metal. At room temperature, the element is in a solid state. This is...Read More