by multiple capture of neutrons in
uranium of first detonation of a
thermonuclear device. The elements
were chemically isolated from the
debris of the explosion.
------------------------------------------------------------------------
101 Mendelevium (Md) 256 1955; A. Ghiorso, B. G. Harvey, G.
R. Choppin, S. G. Thompson, G. T.
Seaborg; University of California
at Berkeley; 41-MeV helium-ion
bombardment of Es<253> in 60-inch
cyclotron.
------------------------------------------------------------------------
102 Unnamed[B] 254 1958; A. Ghiorso, T. Sikkeland, A.
E. Larsh, R. M. Latimer;
University of California, Lawrence
Radiation Laboratory, Berkeley;
68-MeV carbon-ion bombardment of
Cm<246> in heavy-ion linear
accelerator (Hilac).
------------------------------------------------------------------------
103 Lawrencium 257 1961; A. Ghiorso, T. Sikkeland, A.
E. Larsh, R. M. Latimer;
University of California, Lawrence
Radiation Laboratory, Berkeley;
70-MeV boron-ion bombardment of
Cf<250>, Cf<251>, and Cf<252>
in Hilac.
========================================================================

[B] A 1957 claim for the synthesis and identification of element 102 was
accepted at that time by the International Union of Pure and Applied
Chemistry, and the name nobelium (symbol No) was adopted. The University
of California scientists, A. Ghiorso et al., cited here believe they
have disproved the earlier claim and have the right to suggest a
different name for the element.

End of the Project Gutenberg EBook of A Brief History of Element Discov