Actinium was discovered by Andre Debierne in 1899 at France. Its name originates from the Greek aktinos "ray". Actinium is dangerously radioactive; found naturally in uranium ores, it is 150 times more radioactive than radium. Its chemical behaviour is similar to that of the rare earths, particularly lanthanum. Source: Webelements
Welcome to the Periodic Table of the Elements power trail; which begins at Mount Henry Bridge and continues south down the freeway cycle path. Please stay safe and enjoy the power trail.
The periodic table of elements are those approved by
the International Union of Pure & Applied Chemistry.