Andre Louis Debierne discovered actinium in 1899. Friedrich Oskar Giesel independently discovered it in 1902 but Debierne is largely credited with the discovery.
Andre Louis Debierne (France) discovered actinium in 1899. Friedrich Oskar Giesel (Germany) independently discovered it in 1902 but Debierne is largely credited with the discovery.
Actinium was discovered in residues from the uranium and radium extraction from ores. Andre Louis Debierne (France) discovered actinium in 1899. Friedrich Oskar Giesel (Germany) independently discovered it in 1902 but Debierne is largely credited with the discovery.
Francium was discovered by Marguerite Perey (from France) in 1939 during a study on actinium-227: she observed an energy level possibly attributable to a new element. After some chemical experiments she was sure that the radiation is from a new chemical element, after this called francium.
Francium was discovered by Marguerite Perey in 1939 during a study on actinium-227: she observed an energy level possibly attributable to a new element. After some chemical experiments she was sure that the radiation is from a new chemical element, after this called francium.
10 December 2011(I'm guessing you mean the one which scientists think MIGHT have life on it?)
Actinium was discovered in 1899 by Andre Louis Debierne and independently by Friedrich Oskar Giesel in 1902.
Andre Louis Debierne discovered actinium in 1899. Friedrich Oskar Giesel independently discovered it in 1902 but Debierne is largely credited with the discovery.
Andre Louis Debierne (France) discovered actinium in 1899. Friedrich Oskar Giesel (Germany) independently discovered it in 1902 but Debierne is largely credited with the discovery.
Andre Louis Debierne discovered actinium in 1899. Friedrich Oskar Giesel independently discovered it in 1902 but Debierne is largely credited with the discovery.
Andre Louis Debierne (France) discovered actinium in 1899. Friedrich Oskar Giesel (Germany) independently discovered it in 1902 but Debierne is largely credited with the discovery.
Actinium was discovered in residues from the uranium and radium extraction from ores. Andre Louis Debierne (France) discovered actinium in 1899. Friedrich Oskar Giesel (Germany) independently discovered it in 1902 but Debierne is largely credited with the discovery.
Andre Louis Debierne (France) discovered actinium in 1899. Friedrich Oskar Giesel (Germany) independently discovered it in 1902 but Debierne is largely credited with this discovery.
Actinium was discovered in residues from the uranium and radium extraction from ores. The concentration of Ac is extremely low. But actinium can be prepared and artificially, as a result of nuclear reactions. Andre Louis Debierne (France) discovered actinium in 1899. Friedrich Oskar Giesel (Germany) independently discovered it in 1902 but Debierne is largely credited with the discovery.
Andre Louis Debierne - 1899 Fritz Giesel - 1902
It was discovered in France by the French chemist André-Louis Debierne.
Actinium was named after the Greek word "aktinos" which means "ray" or "beam" due to its high radioactivity. The element was discovered by Friedrich Oskar Giesel and independently by André-Louis Debierne in 1899.
They were discovered by scientists