atomic number 99 การใช้

A : They are einsteinium ( chemical symbol Es, atomic number 99 ); bohrium ( symbol Bh, atomic number 107 ); and fermium ( symbol Fm, atomic number 100 ).
As the effort which had led to the design of " Ivy Mike " was codenamed Project PANDA, element 99 had been jokingly nicknamed " Pandamonium " but the official names suggested by the Berkeley group derived from two prominent scientists, Albert Einstein and Enrico Fermi : " We suggest for the name for the element with the atomic number 99, einsteinium ( symbol E ) after Albert Einstein and for the name for the element with atomic number 100, fermium ( symbol Fm ), after Enrico Fermi . " The discovery of these new elements was announced by Albert Ghiorso at the first Geneva Atomic Conference held on 8 20 August 1955.