lawrencium
lawrencium
Symbol: Lr
Atomic number: 103
Atomic weight: (262)
Appearance unknown, however it is most likely silvery-white or grey and metallic. Lawrencium is a synthetic rare-earth metal. There are eight known radioisotopes, the most stable being Lr-262 with a half-life of 3.6 hours. Due to the short half-life of lawrencium, and its radioactivity, there are no known uses for it. Identified by Albert Ghiorso in 1961 at Berkeley. It was produced by bombarding californium with boron ions. The name is temporary IUPAC nomenclature, the origin of the name comes from Ernest O. Lawrence, the inventor of the cyclotron. If sufficient amounts of lawrencium were produced, it would pose a radiation hazard.

Elements of periodic system. 2013.

  • Lawrencium — (pronEng|ləˈrɛnsiəm) is a radioactive synthetic element with the symbol Lr (formerly Lw) and atomic number 103.Its most stable known isotope is 262Lr, with a half life of approximately 3.6 hours. Little is known of the chemistry but there is… …   Wikipedia

  • Lawrencium — Nobélium ← Lawrencium → Rutherfordium Lu …   Wikipédia en Français

  • lawrencium — [ lɔrɑ̃sjɔm ] n. m. • 1962; de Lawrence, n. d un physicien amér. ♦ Chim. Élément atomique (Lr; no at. 103), le dernier de la série des actinides. Isotope du lawrencium obtenu par bombardement du californium. ● lawrencium nom masculin (de E. O.… …   Encyclopédie Universelle

  • lawrencium — n. [from Ernest O. Lawrence, inventer of the cyclotron.] A transuranic element of atomic number 103. It was discovered in 1961 by bombardment of californium in a cyclotron with boron nuclei. Other isotopes were prepared in 1965 at Dubna. The… …   The Collaborative International Dictionary of English

  • Lawrencium — 1961, Modern Latin, from the name of Ernest O. Lawrence (1901 1958), U.S. physicist, cyclotron pioneer and founder of the lab where it was discovered …   Etymology dictionary

  • lawrencium — ☆ lawrencium [lô ren′sē əm ] n. [ModL: so named after E. O. Lawrence (see LAWRENCE2 Ernest O(rlando)), who invented the cyclotron + IUM] a radioactive, metallic chemical element, the last member of the actinide series: originally produced by… …   English World dictionary

  • Lawrencium — Eigenschaften …   Deutsch Wikipedia

  • lawrencium — /law ren see euhm/, n. Chem. a synthetic, radioactive, metallic element. Symbol: Lr; at. no.: 103. [1960 65; Lawrence Radiation Laboratory, Berkeley, California + IUM] * * * ▪ chemical element  (Lr), synthetic chemical element, the 14th member of …   Universalium

  • Lawrencium — lourensis statusas T sritis fizika atitikmenys: angl. lawrencium vok. Lawrencium, n; Lawrentium, n rus. лоуренсий, m pranc. lawrencium, m …   Fizikos terminų žodynas

  • lawrencium — lourensis statusas T sritis fizika atitikmenys: angl. lawrencium vok. Lawrencium, n; Lawrentium, n rus. лоуренсий, m pranc. lawrencium, m …   Fizikos terminų žodynas