N IN 1919-Table I. 



7 or 1 



No. 1 

 Hydrogen 

 H= 1-008 



From 8 down to 



No. 2 

 Helium 

 He=40 



No. 9 

 Fluorine 

 F=19-0 



No 10 



Neon 



Ne=20'2 



No. 17 

 Chlorine 

 CI = 35-46 



25 



anese 

 54-93 



No. 35 

 Bromine 

 Br=79-92 



43 



No. 26 

 Iron 



Fe= 55*84 



No. 44 

 Ruthenium 

 Ru=10l-7 



No. 27 



Cobalt 



Co = 58-9' 



No. 45 

 Rhodium 

 Rh = 102-9 



No 18 

 Argon 



A =39 "88 



No 28 



Nickel 



Ni=58'68 



No. 36 

 Krypton 

 Kr=82-92 



No. 46 

 Palladium 

 Pd= 106-7 



No 53 



Iodine 



1 = 126-92 



No 54 

 Xenon 

 X= 130-2 



a 61 



No. 62 

 Samarium 

 Sa= 150-4 



• 





o. 75 



No. 76 

 Osmium 

 Os= 190*9 



No. 77 

 Iridium 

 Ir=193-1 



No. 78 

 Platinum 

 Pt = 1952 



No. 85 



No. 86 

 Niton 

 Nt=222-0 

 [Thorium Emanation] 



(220) 

 [Actinium Emanation! 



















