Related quotes
- The question of the composition of perceptible objects is one which already occupied the mind of the ancient Greeks.
- The movement of the emitters of the spectral lines may be deduced on the basis of the Doppler principle.
- 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.
- It is more likely that more than a century will pass before we know the structure of the chemical atoms as thoroughly as we do our solar system.
- 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.
- 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.