Clark's Updated Periodic Table
John D Clark's 1950 chart. It looks as though the experience of producing the 1949 version for Life Magazine caused him to have a radical rethink. John D. Clark, A modern periodic chart of chemical elements. Science,111, 661-663 (1950). Information supplied by Philip Stewart.
|Periodic Table, What is it showing?||
© Mark R. Leach 1999-
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