Why We Use Protactinium?

Protactinium is used mainly for research purposes. Protactinium-231 combined with the thorium-230 can be used to date marine sediments.

What is Protactinium-231 used for?

Protactinium's most stable isotope, protactinium-231, has a half-life of about 32,760 years. It decays into actinium-227 through alpha decay. Due to its scarcity, high radioactivity and toxicity, there are currently no uses for protactinium outside of basic scientific research.

What is radium used for?

Radium is used in luminous paint (in the form of radium bromide). Radium and beryllium were once used as a portable source of neutrons. Radium is used in medicine to produce radon gas, used for cancer treatment.