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File:Mendelejevs periodiska system 1871.png

Description

Dmitrij Mendelejevs periodiska system från 1871 med luckor (—) för ytterligare ämnen
Date 2003-12-11 (original upload date)
Source Källa:Dmitrij Ivanovitj Mendelejev (1834 - 1907). Originally from sv.wikipedia; description page is/was here.
Author Original uploader was Den fjättrade ankan at sv.wikipedia

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