The final piece of the jigsaw puzzle of how actinides bond with ligands through phi bonds has been identified, with its ...

Heavy actinides—elements at the bottom of the periodic table, after plutonium—are radioactive, rare and chemically complex, ...

If you would like to learn more about the IAEA’s work, sign up for our weekly updates containing our most important news, multimedia and more.

The actinides include 14 metallic elements in the periodic system. They include thorium, uranium, neptunium, plutonium and ...

If you would like to learn more about the IAEA’s work, sign up for our weekly updates containing our most important news, multimedia and more.

Hoard, J. L., and Stroupe, J. D., quoted in “Spectroscopic Properties of Uranium Compounds”, by G. H. Dieke and A. B. F. Duncan (McGraw-Hill, New York, 1949).