mendelevio 65
Mendelevium . ( From D. i. Mendeleev , 1834-1907, Russian chemist). 1. m. No. radioactive chemical element atóm. 101. The Group of the actinide metal, gets artificially by bombardment of Einsteinium with alpha particles. Its half-life is 90 minutes, and all its isotopes are radioactive. (Símb.) Md ).