The SciencesApril 1, 1950
The Synthetic Elements
There are nine of them, including the newly manufactured berkelium. Four have filled gaps in the periodic table of 92 elements and five have extended it beyond uranium
Stories by G. T. Seaborg
The Synthetic Elements
There are nine of them, including the newly manufactured berkelium. Four have filled gaps in the periodic table of 92 elements and five have extended it beyond uranium