The chemistry of protactinium, which is very difficult to study due to it scarcity and complex chemistry, is important for understanding and controlling its behavior for application in nuclear reactors, as well as for comprehending the overall variable and complex chemistry of the actinide series and transition elements used in everyday technologies. (sciencedaily.com)
It also removes transition elements, such as iron, which accelerate free radical pathology, including cancer. (cancertutor.com)
If you look at the essential minerals for plants, you see calcium, magnesium, potassium, copper, iron, manganese, zinc, and all of those other critical transition elements, as well as structural components for some of them... They all have an ion associated with them. (articles.mercola.com)