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16 Οκτ 2013 · Lawrencium is artificially produced, and has only been made in small quantities. It can be produced by bombarding californium placed in a linear accelerator with boron ions.
Element Lawrencium (Lr), Group 20, Atomic Number 103, f-block, Mass [262]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
8 Απρ 2015 · In this issue of Nature, Yuichiro Nagame and colleagues report the first measurement of one of the basic atomic properties of element 103 (lawrencium), namely its first ionization potential.
Lawrencium is a synthetic chemical element; it has symbol Lr (formerly Lw) and atomic number 103. It is named after Ernest Lawrence, inventor of the cyclotron, a device that was used to discover many artificial radioactive elements.
Lawrencium was discovered by four American scientists, Robert M. Latimer, Almon E. Larsh, Torbjørn Sikkeland and Albert Ghiorso in 1961 at the Lawrence Radiation Laboratory in California. The scientists bombarded 3 mg of californium containing four different isotopes of californium with boron ions in a linear accelerator.
Lawrencium (Lr), synthetic chemical element, the 14th member of the actinoid series of the periodic table, atomic number 103. Not occurring in nature, lawrencium (probably as the isotope lawrencium-257) was first produced (1961) by chemists Albert Ghiorso, T. Sikkeland, A.E. Larsh, and R.M. Latimer.
29 Μαΐ 2018 · law·ren·ci·um / lôˈrensēəm / • n. the chemical element of atomic number 103, a radioactive metal of the actinide series. Lawrencium does not occur naturally and was first made by bombarding californium with boron nuclei. (Symbol: Lr) The Oxford Pocket Dictionary of Current English.
