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103 and lawrencium
The actinide or actinoid ( IUPAC nomenclature ) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium.
Chemical element number 103 is named " lawrencium " in Lawrence's honor.
Chemical element number 103, discovered at LBNL in 1961, is named " lawrencium " in his honor.
| Unt || Unniltrium || 103 || Temporary name given to lawrencium until it was permanently named by IUPAC.
That machine was used in the discovery of elements 102-106 ( 102, nobelium ; 103, lawrencium ; 104, rutherfordium ; 105, dubnium and 106, seaborgium ), each produced and identified on the basis of only a few atoms.
* Ernest O. Lawrence, inventor of the cyclotron and winner of 1939 Nobel Prize for Physics, the chemical element 103 lawrencium is named for him, participated in the Manhattan Project ( brother of John H. Lawrence )
In 1992, the IUPAC Trans-fermium Working Group officially recognized element 103, confirmed its naming as lawrencium, with symbol " Lr ", and named the nuclear physics teams at Dubna and Berkeley as the co-discoverers of lawrencium.
In chemistry, transactinide elements ( also, transactinides, or super-heavy elements ) are the chemical elements with atomic numbers greater than those of the actinides, the heaviest of which is lawrencium ( 103 ).

103 and Lr
Lawrencium is a radioactive synthetic chemical element with the symbol Lr ( formerly Lw ) and atomic number 103.
| Lw || Lawrencium || 103 || Current symbol is Lr.

lawrencium and Lr
The team suggested the name lawrencium, and the symbol " Lw ", but IUPAC changed the symbol to " Lr " in 1963.
In August 1997, the International Union of Pure and Applied Chemistry ( IUPAC ) ratified the name lawrencium and the symbol Lr during a meeting in Geneva.
Scandium ( Sc ) and yttrium ( Y ) are always included, but the other two spaces are usually occupied by lanthanum ( La ) and actinium ( Ac ), or by lutetium ( Lu ) and lawrencium ( Lr ); less frequently, it is considered the group should be expanded to 32 elements ( with all the lanthanides and actinides included ) or contracted to contain only scandium and yttrium.
The team at the University of California suggested the name lawrencium ( after Ernest O. Lawrence, the inventor of cyclotron particle accelerator ) and the symbol " Lw ", for the new element, but " Lw " was not adopted, and " Lr " was officially accepted instead.
* Lw, the former symbol of lawrencium, now Lr.

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