soMi (d.v// u/v'A'. ;/vi .//I/ .;.\( / V i\ riiysns iiii 4J<> 



riif fiuTn\-valui' of .1 st.»tii>iiary stale, wlu-n (il>taiiu-<l l>y aiialy/iiig 

 .1 .-iH-tiruin, is m-nerally niwii not in e(|uivalrnt \olis, Imt in a unit 

 lalU'd ilif "\v.i\<.--nuinlHT." This unit is \, he timi-s as urcat as an fr^, 

 and ;{()()//( e (ahoui .()()012;{7) limes as great as an equivalent volt. 

 When the eiH'rv;>-s allies of two sialiiinar\' slates are expressed in 



IONIZED 



i^Ton 



16 

 -E-k 



A- 



STflTL 



Fig. 5 — Diagram of the stationary states of hydrogen, deduced from Its spectrui: 



