Appearance and Characteristics Harmful effects: Mendelevium is harmful due to its radioactivity. Characteristics: Mendelevium is a synthetic, highly radioactive metal and has only been produced in miniscule amounts. Mendelevium was the first element to be produced one atom at a time. Mendelevium metal has not been prepared. (3a)
Uses of Mendelevium Mendelevium is of scientific research interest only.