Actinium is a radioactive chemical element with the symbol Ac and atomic number 89. It is a silvery-white metal that glows blue in the dark due to its intense radioactivity.
What are the properties of Actinium?
Actinium has a high melting point, is highly radioactive, and reacts with oxygen in the air. It is also used in scientific research and certain medical applications.
Who discovered Actinium?
Friedrich Oskar Giesel discovered Actinium in 1902.