A foldout from the Mazurs book, Graphical Representations of The Periodic System During 100 Years.
Mazurs said he drew it in 1967 and published it in 1969: ref. E Mazurs, A new numeration of periods in the periodic system and the Kessler Principle for the construction of the periodic table, Canad. Chem. Edu. 4(3), 21-23, 1969.
It is a Janet's modified system to show the irregularities – Lu, Cr, Pd etc. Click here for a larger version:
Thanks to Philip Stewart for the tip!
|Periodic Table, What is it showing?||
© Mark R. Leach 1999-
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