Dmitri Mendeleev (The Mystery of Matter: Unruly Elements)

Описание: Film clip from "The Mystery of Matter" episode 2 "Unruly Elements."

A hidden order to the elements was sensed by many scientists, but Russian chemistry professor Dmitri Mendeleev gets credit for the periodic table because he made predictions about elements missing from the table. The modern periodic table is the result of hard work and struggle.