Mendelevium - Periodic Table of Videos
The team at periodicvideos has created a TED-Ed Lesson for every element of the periodic table. Mendelevium is named after one of the most important characters in the story of chemistry.
One of Mendeleev’s big achievements was to predict there would be more elements than were known at the time. After his death, different elements were discovered, and some of them fit perfectly into the missing spaces he had left.