The entire process was driven by the 320-day half-life of the berkelium target material.
From the sciencedaily.com
Berkelium is a synthetic element with the symbol Bk and atomic number 97.
From the en.wikipedia.org
Berkelium, for example, was first synthesized at the University of California, Berkeley.
From the post-gazette.com
In December 1949, the team found element 97, berkelium, and in February 1950, element 98, californium.
From the latimes.com
Berkelium is a perishable substance.
From the sciencedaily.com
Berkelium has an atomic number of 97.
From the sciencedaily.com
On course to the island of stability, researchers initially skipped element 117 due to the difficulty in obtaining the berkelium target material.
From the sciencedaily.com
Berkelium, which must be created artificially in very special nuclear reactors, is heavier than Uranium and extremely difficult to produce in pure concentrations.
From the sciencedaily.com
The team established the existence of element 117 from decay patterns observed following the bombardment of a radioactive berkelium target with calcium ions at the JINR U400 cyclotron in Dubna.
From the sciencedaily.com
More examples
A radioactive transuranic element; discovered by bombarding americium with helium
A transuranic chemical element (symbol Bk) with an atomic number of 97
B-K. For more information on this and other elements, see The elements.