mendelevium

Mendelevium is a chemical element with the symbol Md and atomic number 101. It is a synthetic element, meaning it has never been found in nature. It was first created in 1955 by a team of scientists at the Joint Institute for Nuclear Research in Dubna, Russia.

Mendelevium is a very rare element. Only a few grams of mendelevium have ever been created, and it is very expensive to produce.

Mendelevium is a radioactive element, meaning it decays over time. The half-life of mendelevium is only 200 days.

Mendelevium is named after Dmitri Mendeleev, the Russian chemist who created the periodic table of elements. Mendeleev predicted the existence of mendelevium in 1869, even though it was not discovered until 86 years later.

The researchers used a particle accelerator to synthesize mendelevium.