Chemistry Reference
In-Depth Information
Fig. 11.7 Periodic system from Mendeleev
s laboratory notebook on gas expansion (Source:
Gordin (2004), op. cit., p. 53 (note 51). Original source: Mendeleev, Nauchnyi arkhiv:
Periodicheskii zakon, photocopy 29)
'
s experimental research on the periodic law as well as
his rare-earth investigations. In July 1871, Mendeleev composed his German
landmark article on the periodic law, which was translated into German by Felix
Wreden and which appeared in
Liebig
Thus ended Mendeleev
'
s Annalen
in November 1871—symbolising
'
s last research paper on the periodic law.
80
From all the papers Mendeleev had written in the period 1869-1871, this paper
proved most valuable for the next generation of chemists who were on the verge of
embarking on their own rare-earth studies. A definite proof as to the validity of
the homologous accommodation methodology was still
Mendeleev
'
lacking. “It
is here”,
80
Mendeleev (1871c/t), op. cit. (note 55)
