It is element number 101 on the periodic table, its sign being Md, its atomic weight 258 and the chemical series designated actinides. The name it had received at the beginning had been Unnilunio and its sign Mv (adopted after the name change). Among its most outstanding characteristics, it can be found that its natural state is solid and its melting point oscillates at 827 ºC, in addition to being one of the 9 transurans that are known. Dmitri Mendeleyev, the man who created the periodic table, is the one who was honored by naming the compound Mendelevius.
Albert Ghiorso, Bernard G. Harvey, Gregory R. Choppin, Stanley G. Thompson and Glenn T. Seaborg, were in charge of the series of investigations carried out at the University of California, in which they discovered the Curium, Californium, Einsteinium, Fermio, Laurencio and, of course, Mendelevium (being exactly found on February 19, 1955), all within the actinide class and, for the most part, produced synthetically. Few isotopes of this chemical component have been found (only three are known). With an objective observation, it can be seen that it oxidizes when immersed in aqueous solution.
The process of obtaining it consists of bombarding the einsteinium-253 with some helium ions, with which some isotopes belonging to Mendelevium could be found. Its average life is located between 78 minutes and 55 days, the latter being the highest index registered with respect to the element and belonging to the 258-Md isotope; it is more used to be able to investigate other compounds and at the same
