Facts About Neptunium and Actinium
Interesting Facts
Not Available
  
Not Available
  
Sources
Made by Bombarding Uranium with Neutrons, Ores of metals
  
Obtained by Treating Radium with Neutrons, Ores of metals
  
History
  
  
Who Discovered
Edwin McMillan and Philip H. Abelson
  
Friedrich Oskar Giesel
  
Discovery
In 1940
  
In 1902
  
Abundance