1) Atomic number 103 2) Chemical element 3) Chemical element 4) Element 5) Element discovered in 1961 6) Element number 103 7) Element with the symbol Lr 8) Synthetic element
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1) Lw
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Lawrencium is a synthetic chemical element with chemical symbol Lr (formerly Lw) and atomic number 103, named in honor of Ernest Lawrence, inventor of the cyclotron, a device that was used to discover many artificial radioactive elements. A radioactive metal, lawrencium is the eleventh transuranic element and is also the final member of the actini...
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http://en.wikipedia.org/wiki/Lawrencium
(Lr), synthetic chemical element, the 14th member of the actinoid series of the periodic table, atomic number 103. Not occurring in nature, ... [2 related articles]
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http://www.britannica.com/eb/a-z/l/24
(Lr) A radioactive, metallic element that is a member of the actinide series and also a transuranic element. It was first made by A. Ghioro and co-workers in 1961 at the University of California at Berkeley by bombarding californium with boron nuclei; it is named after the physi...
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<chemical> Lawrencium. A radioactive actinide discovered in 1961. It has the atomic symbol lr, atomic number 103, and atomic weight of 257. There are two isotopes with mass number 257 or 258, and mass number 256. ... Chemical name: Lawrencium ... (12 Dec 1998) ...
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(Lr) (law-ren´se-әm) a chemical element, atomic number 103, atomic weight 257.
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(Lr, Lw) Type: Term Pronunciation: law-ren′sē-ŭm Definitions: 1. An artificial transplutonium element; atomic no. 103; atomic wt. 262.11.
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Lawrencium is an artificial radioactive element with the symbol Lr.
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[
n] - a radioactive transuranic element synthesized from californium
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The only known isotope has a half life of 8 seconds. Symbol LrDiscoveredFirst artificially created in 1961 by a team led by American chemist Albert Ghiorso.
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Lr noun a radioactive transuranic element synthesized from californium
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Synthesized, radioactive, metallic element, the last of the actinide series, atomic number 103, relative atomic mass 262. Its only known isotope, Lr-257, has a half-life of 4.3 seconds and was originally synthesized at the University of California at Berkeley in 1961 by bombarding californium with boron nuclei. The original symbol, Lw, was ...
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