Interesting Facts
Sources
Who Discovered
Discovery
Abundance In Universe
Abundance In Sun
Abundance In Meteorites
Abundance In Earth's Crust
Abundance In Oceans
Abundance In Humans
Actinium glows in the dark due to its radioactivity.
Obtained by Treating Radium with Neutrons, Ores of metals
Neptunium was the first transuranium element to be discovered.
Made by Bombarding Uranium with Neutrons, Ores of metals
Edwin McMillan and Philip H. Abelson