Mendelevium is the thirteenth member of the actinides located on the second row below the periodic table. It is a radioactive metal with a melting point of 826.8 degrees Celsius. It was synthesized in 1955 by Glenn Seaborg, Albert Ghiorso, Gregory Choppin, and Stanley Thompson. It is a reactive metal with properties similar to the rest of the actinides.  Mendelevium 258 has a half-life of 51 days. It is produced by bombarding Einsteinium 253 with Helium. 

Mendelevium has no uses outside of scientific experiments.