File:Mendeleev 1869 prediction of germanium (detail).svg

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Summary

Description
English: Detail of the 1869 periodic table by Mendeleev; before column/row transposition. Germanium is predicted as "?=70" (atomic mass approach).
Date
Source detail from https://commons.wikimedia.org/wiki/File:Mendeleev%27s_1869_periodic_table.png
Author en:Dmitri Mendeleev (1834-1907)

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Mendeleev 1869 periodic table (detail): prediction of germanium

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1 March 1869Gregorian

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