Mendeleev's 1904 Periodic Table
Mendeleev periodic table formulation from 1904.
This formulation was prepared to go with Mendeleev's article predicting that the ether (aether) would be found at the head of group zero in period zero. Also that dashes are left for six elements between H and He.
The predicted elements eka-boron (scandium), eka-aluminium (gallium) & eka-silicon (germanium) are present but the radioactive eka-manganese (technetium) is not. Also, the noble gas elements are on the left hand side of the formulation:
Thanks to Philip Stewart for the corrections and details.
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© Mark R. Leach 1999-
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