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 atomicaxisbeam Change image and share on social
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. Johannes Stark allowatomdistinguish Change image and share on social
Moreover, the abundance of chemical compounds and their importance in daily life hindered the chemist from investigating the question, in what does the individuality of the atoms of different elements consist. Johannes Stark abundanceatomchemical share on social
An external electric field, meeting it and passing through it, affects the negative as much as the positive quanta of the atom, and pushes the former to one side, and the latter in the other direction. Johannes Stark affectatomdirection share on social
The question of the composition of perceptible objects is one which already occupied the mind of the ancient Greeks. Johannes Stark ancientcompositiongreek Change image and share on social
A beam of luminous hydrogen canal rays has, owing to its velocity, exactly the same direction as that of the electric field in which it may be made to move. Johannes Stark beamcanaldirection Change image and share on social
The most common and most important result of them is that the nature and size of the effect on corresponding series of different elements are largely an expression of the peculiarity of their atomic structure - or, at least, of the structure of the surface. Johannes Stark atomiccommoneffect share on social
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 atomicbeginchemical Change image and share on social
The emitters of the spectral series are without exception single atoms, not compounds of atoms. Johannes Stark atomcompoundemitter Change image and share on social
By recognizing that the chemical atom is composed of single separable electric quanta, humanity has taken a great step forward in the investigation of the natural world. Johannes Stark atomchemicalcompose Change image and share on social