Md is the chemical symbol for mendelevium, a synthetic element with the atomic number 101. It belongs to the actinide series and is named after the famous scientist Dmitri Mendeleev, who created the periodic table. Mendelevium is a radioactive metal that was first produced in 1955 by a team of researchers at the University of California, Berkeley. Due to its instability and short half-life, mendelevium has no significant commercial applications. It is primarily used for research purposes in nuclear chemistry and physics. The element is typically produced in minute quantities through nuclear reactions involving heavier elements.