Hackli — Modification of the Periodic Table. 493 



(Tl) In Ga Al Se Ti V Cr Mn Fe Co 



In both cases we have seen that the elements occupy 

 neighboring positions in the table, and the connecting 



Fig. 3. 



+<\ 



tl 



-2 



t% 



tO +1+2 +3 +4 



cm- 



I 



5n 

 2* 



Bi 



35 

 XI 



Nt 

 o 



Ge 

 * 



Sb 



ix 



St 



As 



255 



n 



Te 



2*6 

 ED 



P 



2.*6 



m 



I 



1357 

 Ofl 



Xe 

 o 



N 



|»*5> 



s 



2*6 



3: 



Br 



1357 



nn 



Ra 



2 



/let 



Th 



o 



CI 



4 357 



o 





 -2 



nn 



F 



J 7 



Ne 

 o 



He 

 o 



Cs 

 i 



Kb 

 1 



if 



Na 



i 



Ba 



2 



La 



3 



Ce 



3 + 



2 



Ca 



2 



Sc.Ti 



5 23* 



Zr 



3 * 



V 



2 



fll 



Si 



B 



3 



C 



LTJ 



BE 



3* 

 XX 



V 



23*5 



nn 



Zr-Cb;Mo 



"23*S-;34 



m 



236 

 HI 



Cr I Mvi 



29*67 



;3^6 



7 



^~ 



f^-jc^KnT 



2 36* 23* N 23 





m 



Cu 



i x 



UZd 



Kh 



23 ¥6 



222 



Pi 



22 



2 



Cd 



2 



z 



I 



Ge 





Sh 



2 V 



£., Tr Ndj^ Sm 6a frdL Tj> J>y Ho <&> ir Tm' Tm 1 - 9t> La 



# 



» 



f^ 



in 



Ta 



3ff 



Tk 



B 



W 

 2*f£ 

 EX 



w 



55H5 





5555 



51 



HF* 

 a* 



I 



/3 



/ 2 



Tl 



/3 



2 * 



u 



3*6 



+2 | +3 



+* 



+5 



+6 



+7 



+ 8 + 6 



+4 



+ 1 



+ 3 



+ ^ 



Fig. 3. Polar number and Isomerism of the elements. 



medium is its polar number. The closer the elements 

 stand to each other, the closer are its properties related 

 to each other. 



We may take, for instance, the chlorides of any A- 

 group, say LiCl, NaCl, KC1, RbCl, CsCl and we find, as is 



