Astatine is the rarest naturally occurring element on Earth and one of the least studied within the periodic table, mostly because it lives up to its name, which is the Greek word for "unstable." ...

Researchers supported by the DOE Isotope Program are studying the isotope astatine-211 (At-211) for a new cancer treatment called targeted alpha therapy. This type of treatment may do more damage to ...

Astatine-211 (At-211) is one of a handful of promising alpha emitting radioisotopes for cancer therapy. Its short 7.2-hour half-life means that it must be handled quickly to minimize losses due to ...