Samarium - Periodic Table of Videos
The team at periodicvideos has created a TED-Ed Lesson for every element of the periodic table. Samarium is element number 62 and its symbol is Sm.
Samarium was named after the mineral, samarskite, from which it was isolated. The mineral had been named earlier after Colonel Vasili Samarsky, who, therefore, indirectly became the first living person to have a chemical element named after