mendelevium (Md), synthetic chemical element of the actinoid series of the periodic table, atomic number 101. It was the first element to be synthesized and discovered a few atoms at a time.

What is mendelevium in the periodic table?

Discovery date1955Origin of the nameMendelevium is named for Dmitri Mendeleev who produced one of the first periodic tables.Allotropes

Is mendelevium man made?

It was the ninth transuranium element of the actinide series to be discovered. Mendelevium has 14 recognized isotopes. The most stable one is 258Md, which has a half-life of about 51.5 days. Mendelevium is artificially produced, and it has never been made in great quantities.