A freshly cut silvery protactinium sample gleaming inside a sealed glass ampoule
A short silent video about Protactinium (Pa), element 91, actinide. Protactinium is a rare, radioactive actinide. Its name means "parent of actinium" because it decays into actinium.
More Protactinium videos
- A freshly cut silvery protactinium sample gleaming inside a sealed glass ampoule (this video)
Explore Protactinium: facts, properties and a 3D atom · Back to the periodic table