Mendelevium, the ninth transuranium element of the actinide series to be discovered, was first identified by Ghiorso, Harvey, Choppin, Thompson, and Seaborg in 1955 as a product of the bombardment of the einsteinium isotope 253Es with helium ions. The isotope produced was 256Md .
Origin of name
Named after Dimitri Mendeleev . Originally the symbol was Mv . The name and symbol was finally decided in 1997 .