A tiny actinium pellet emitting an ethereal pale blue glow from ionizing the surrounding air

A tiny actinium pellet emitting an ethereal pale blue glow from ionizing the surrounding air

A short silent video about Actinium (Ac), element 89, actinide. Actinium is a radioactive element that gives its name to the actinide series. It glows pale blue in the dark.

More Actinium videos

  • A tiny actinium pellet emitting an ethereal pale blue glow from ionizing the surrounding air (this video)

Explore Actinium: facts, properties and a 3D atom · Back to the periodic table