#emitters

Thus at the beginning of 1906 it seemed to be established that the emitters of the spectral series of chemical elements are their positive atomic ions. ↗

— Johannes Stark

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The movement of the emitters of the spectral lines may be deduced on the basis of the Doppler principle. ↗

— Johannes Stark

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The emitters of the spectral series are without exception single atoms, not compounds of atoms. ↗

— Johannes Stark

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