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
For under certain conditions the chemical atoms emit light waves of a specific length or oscillation frequency - their familiar characteristic spectra - and these can come in the form of electromagnetic waves only from accelerated electric quanta. Johannes Stark accelerateatomcharacteristic 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
At the head of these new discoveries and insights comes the establishment of the facts that electricity is composed of discrete particles of equal size, or quanta, and that light is an electromagnetic wave motion. Johannes Stark composediscoverydiscrete 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
In my view the structure of the whole atom was that of an individual, with all its parts interconnected, and the emission of a spectral line appeared to me to be the result of the coherence and co-operation of several electric quanta. Johannes Stark appearatomcoherence 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
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
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 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