By allowing the positive ions to pass through an electric field and thus giving them a certain velocity, it is possible to distinguish them from the neutral, stationary atoms.
More Quotes from Johannes Stark:
Along a series of lines running from longer to shorter wavelengths the effect of the electric field becomes greater as the serial numbers increase - that is, as the wavelength decreases.Johannes Stark
However, cases came to light later in which canal rays containing only positive ions showed a Doppler effect in the spectral lines emitted by them.
Johannes Stark
The movement of the emitters of the spectral lines may be deduced on the basis of the Doppler principle.
Johannes Stark
We can in fact first place the beam of rays of moving positive atomic ions in a plane perpendicular to the axis in which we see the spectral lines emitted by them.
Johannes Stark
The spectra of atomic ions of higher valence are different from the spectra of atomic ions of the same element, but of lower valence.
Johannes Stark
The removal of an electron from the surface of an atom - that is, the ionization of the atom - means a fundamental structural change in its surface layer.
Johannes Stark
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