1941
It was in December of 1940 that by Dr. Glenn T. Seaborg, Edwin M. McMillan, J. W. Kennedy, and A. C. Wahl initially synthesized and isolated plutonium, and it was first identified in February of 1941. A link can be found below for confirmation and to gather more information.
Neon was discovered on November 18, 1898 by Sir William Ramsay and Morris Travers.
Some plutonium chemical compounds; plutonium dioxide, plutonium nitride, plutonium carbide, plutonium nitrate, plutonium trifluoride, plutonium chloride, etc.
The isotope symbol of plutonium with 146 neutrons is plutonium-246, represented as ^246Pu.
Because plutonium itself is so rare, none of its compounds are "common" in the usual sense. However, plutonium compounds with common other elements include fluoride, chloride, bromide, oxide, and sulfate.
Plutonium was discovered by Glenn T. Seaborg, Edwin M. McMillan, Joseph W. Kennedy and Arthur C. Wahl at the Berkeley Laboratory of the University of California (United States) after the bombardment of uranium with deuterons, in 1940. Now plutonium is obtained in the nuclear reactors. Plutonium is also in traces in uranium minerals.
14 December 1940 was the day accepted for the first preparation of the isotope plutonium-238.
Plutonium was discovered on 14 December 1940 at Berkeley, USA.
Plutonium was discovered at Berkeley, USA in 1940.
I'm not sure on the exact day but I know that it was discovered in 1895 by Sir William Ramsay. I hope that helps. . .
Plutonium was discovered in 1940 by Glenn Seaborg and Edwin McMillan at Berkeley Laboratories.
Neptunium and plutonium were discovered in United States in 1940.
Plutonium was discovered in 1940 by Glenn Seaborg and alii.
Plutonium was discovered at Berkeley, USA in December 1940.
Plutonium was discovered irradiating uranium with deuterons in 1940.
Plutonium was discovered in USA (Berkeley) by Glenn Seaborg and Edwin McMillan in 1940.
Plutonium was discovered in USA (Berkeley) by Glenn Seaborg and Edwin McMillan in 1940.
Plutonium was discovered in the year of 1940. It was discovered by multiple scientists: Glenn Seaborg, Edwin McMillan, Arthur Wahl, and Joseph Kennedy.