Gallium and the history of the periodic table (video)

WASHINGTON — Some chemists might see the periodic table of elements as a holy testament to the power of science. However, when it first debuted, it was a different kind of holey, and its journey to classroom walls everywhere had a whole lot of bumps. Watch as Reactions digs into the history of the periodic table with the help of a vanishing spoon, a man named after a rooster, and a bearded Russian