The Janet Periodic Table of Elements

AI Thread Summary
The Janet Periodic Table of Elements from 1929 is noted for its consistency compared to the modern periodic table, as it aligns element placement with the quantum numbers of their most significant electrons. However, a significant flaw is identified where certain elements are incorrectly grouped; for instance, some elements are placed in the same column as valence 2 metals instead of with the inert gases. This misclassification raises questions about the table's overall accuracy and utility. The discussion highlights the importance of proper electron configuration in determining element placement. Overall, the Janet Periodic Table presents an interesting yet flawed alternative to contemporary periodic arrangements.
chemguy
The Janet Periodic Table of Elements (1929) seems more "consistent"
than the modern form. The location of any element (row, column) is
directly related to the quantum numbers of the most significant
electron of the element. Please see;

http://ca.geocities.com/chemguy777/index.htm
 
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There appears to be at least one glaring flaw. He is in the same column as the valence 2 metals (Be, Ca, etc.) rather than with the inert gases (Ne, Ar, etc.).
 
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