curium$18186$ - définition. Qu'est-ce que curium$18186$
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Qu'est-ce (qui) est curium$18186$ - définition

ARTIFICIAL NUCLIDES WITH ATOMIC NUMBER OF 96 BUT WITH DIFFERENT MASS NUMBERS
Curium-243; Curium-245; Curium-248; Curium-247; Curium-244; Curium-246; Curium-232; Curium-233; Curium-234; Curium-235; Curium-236; Curium-237; Curium-238; Curium-239; Curium-240; Curium-241; Curium-242; Curium-249; Curium-250; Curium-251; Curium-252; Curium isotopes; Curium isotope

Curium         
  • adj=on}} cyclotron at the Lawrence Radiation Laboratory, University of California, Berkeley, in August 1939.
  • Double-hexagonal close packing with the layer sequence ABAC in the crystal structure of α-curium (A: green, B: blue, C: red)
  • Orange [[fluorescence]] of Cm<sup>3+</sup> ions in a solution of tris(hydrotris)pyrazolylborato-Cm(III) complex, excited at 396.6 nm.
  • 150px
  • The radiation from curium is so strong that the metal glows purple in the dark.
  • Chromatographic]] [[elution]] curves revealing the similarity between Tb, Gd, Eu lanthanides and corresponding Bk, Cm, Am actinides.
  • [[Glenn T. Seaborg]]
  • Several isotopes of curium were detected in the fallout from the ''[[Ivy Mike]]'' nuclear test.
  • Alpha-particle X-ray spectrometer of a Mars exploration rover
  • doi-access=free}}</ref><br />Fission percentage is 100 minus shown percentages.<br />Total rate of transmutation varies greatly by nuclide.<br /><sup>245</sup>Cm–<sup>248</sup>Cm are long-lived with negligible decay.
  • Predicted curocene structure
CHEMICAL ELEMENT WITH THE ATOMIC NUMBER OF 96
Element 96; Cm (element); History of curium
Curium is a transuranic, radioactive chemical element with the symbol Cm and atomic number 96. This actinide element was named after eminent scientists Marie and Pierre Curie, both known for their research on radioactivity.
Isotopes of curium         
Curium (96Cm) is an artificial element with an atomic number of 96. Because it is an artificial element, a standard atomic weight cannot be given, and it has no stable isotopes.
curium         
  • adj=on}} cyclotron at the Lawrence Radiation Laboratory, University of California, Berkeley, in August 1939.
  • Double-hexagonal close packing with the layer sequence ABAC in the crystal structure of α-curium (A: green, B: blue, C: red)
  • Orange [[fluorescence]] of Cm<sup>3+</sup> ions in a solution of tris(hydrotris)pyrazolylborato-Cm(III) complex, excited at 396.6 nm.
  • 150px
  • The radiation from curium is so strong that the metal glows purple in the dark.
  • Chromatographic]] [[elution]] curves revealing the similarity between Tb, Gd, Eu lanthanides and corresponding Bk, Cm, Am actinides.
  • [[Glenn T. Seaborg]]
  • Several isotopes of curium were detected in the fallout from the ''[[Ivy Mike]]'' nuclear test.
  • Alpha-particle X-ray spectrometer of a Mars exploration rover
  • doi-access=free}}</ref><br />Fission percentage is 100 minus shown percentages.<br />Total rate of transmutation varies greatly by nuclide.<br /><sup>245</sup>Cm–<sup>248</sup>Cm are long-lived with negligible decay.
  • Predicted curocene structure
CHEMICAL ELEMENT WITH THE ATOMIC NUMBER OF 96
Element 96; Cm (element); History of curium
['kj??r??m]
¦ noun the chemical element of atomic number 96, an artificially made radioactive metal of the actinide series. (Symbol: Cm)
Origin
1940s: from the name of Marie and Pierre Curie (see curie).

Wikipédia

Isotopes of curium

Curium (96Cm) is an artificial element with an atomic number of 96. Because it is an artificial element, a standard atomic weight cannot be given, and it has no stable isotopes. The first isotope synthesized was 242Cm in 1944, which has 146 neutrons.

There are 19 known radioisotopes ranging from 233Cm to 251Cm. There are also ten known nuclear isomers. The longest-lived isotope is 247Cm, with half-life 15.6 million years – orders of magnitude longer than that of any known isotope beyond curium, and long enough to study as a possible extinct radionuclide that would be produced by the r-process. The longest-lived isomer is 246mCm with a half-life of 1.12 seconds.