74 Dr. Tate and Dr. Foote on Resonance and Ionization 



Table IV. 



Resonance and Ionization Potentials for Zinc. 

 Referring to figs. 9 and 10. 



Partial 

 Current. 



Applied Potentials at Resonance. 



Resonance 

 Potential. 



Initial 



Potential. 



Curve. 



1 



3 



1 :::::: 



a. 



::: 



2-2 

 24 



b. 



4-3 

 4-2 

 4-0 

 4-0 



c. 



6-4 

 6-4 



d. 



8-4 

 8-4 

 8-0 

 8-0 



e. f. g. 



K> : 6 12-0 13-7 

 10-6 12-0 ... 



Mean Resona 



c-a. 



d-b. 



e-c. 



f-d. 



4*2 

 40 



nee I 



41 

 4-2 

 4-0 

 4-0 



'otenl 



4-2 

 42 



ial = 



40 

 4-0 



4-1 



}~ 



Total 



Current. 



Ionization 

 P. 





4 



7 



8 



9-7 

 9-4 

 9-4 



}■ 



VIean 



Ionization Potential=9'5. 





Fig-. 9. — Zinc. Total and Partial Current Curves. 



Accelerating Potential (Volts) 



