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a radioactive transuranic element synthesized by bombarding einsteinium with alpha particles (Md is the current symbol for mendelevium; Mv was formerly the symbol)

a radioactive transuranic element synthesized by bombarding einsteinium with alpha particles (Md is the current symbol for mendelevium but Mv was formerly the symbol)

Mendelevium. A man-made radioactive element of the actinide family with atomic symbol Md, atomic number 101, and atomic weight 258.