Mendeleev's periodic table

The Mendeleev Periodic Table

This table shows the form of Mendeleev's Periodic Table of the chemical elements as published in 1872. The heading "Reihen" means "Row" and the heading "Gruppe" means "Group". The symbols R2O and RH4, etc., are written in the style of the time which uses superscripts to denote the number of atoms in molecules rather than the current style which uses subscripts. The gaps marked with hyphens ("-") represent chemical elements deduced by Mendeleev as existing but unknown in 1872. He was able to predict with considerable success the properties of some of the missing chemical elements such as germanium.

Reihen Gruppe I.
-
R2O
Gruppe II.
-
RO
Gruppe III.
-
R2O3
Gruppe IV.
RH4
RO2
Gruppe V.
RH3
R2O5
Gruppe VI.
RH2
RO3
Gruppe VII.
RH
R2O7
Gruppe VIII.
-
RO4
1 H=1
2 Li=7 Be=9,4 B=11 C=12 N=14 O=16 F=19
3 Na=23 Mg=24 Al=27,3 Si=28 P=31 S=32 Cl=35,5
4 K=39 Ca=40 -=44 Ti=48 V=51 Cr=52 Mn=55 Fe=56, Ce=59,
Ni=59, Cu=63.
5 (Cu=63) Zn=65 -=68 -=72 As=75 Se=78 Br=80
6 Rb=85 Sr=87 ?Yt=88 Zr=90 Nb=94 Mo=96 -=100 Ru=104, Rh=104,
Pd=106, Ag=108.
7 (Ag=108) Cd=112 In=113 Sn=118 Sb=122 Te=125 J=127
8 Cs=133 Ba=137 ?Di=138 ?Ce=140 - - - - - - -
9 (-) - - - - - -
10 - - ?Er=178 ?La=180 Ta=182 W=184 - Os=195, Ir=197,
Pt=198, Au=199
11 (Au=199) Hg=200 Tl=204 Pb=207 Bi=208 - -
12 - - - Th=231 - U=240 - - - - -

WebElements: the periodic table on the WWW [http://www.webelements.com/]

Copyright 1993-2011 Mark Winter [The University of Sheffield and WebElements Ltd, UK]. All rights reserved.