Overview
Actinium is a radioactive actinide element found in trace amounts in uranium ores and used primarily in scientific research.
Properties
It commonly exhibits a +3 oxidation state, is highly radioactive and has chemistry similar to lanthanides in some respects.
Occurrence and Uses
Actinium isotopes have niche uses in neutron sources and have been investigated for targeted alpha therapy in oncology research.
Isotopes and Safety
Actinium 225 is of medical interest but requires careful radiological handling; actiniums radioactivity necessitates specialized facilities and waste controls.