The Quantum Theory: (By max plank & neils Bohr)
~line spectra:
1. General Principle
The quantum theory of line spectra rests upon the following fundamental assumptions,
i. That an atomic system can and can only, exist permanently in exist permanently in certain series of values for its energy, and that consequently any change of energy of system, including emission and absorption of electromagnetic radiation, must takes place by complate condition between to such states.
ii. That the radiation absorbed or imitate during a transition between two stationery States is”unifrequentic”posses a frequency v, given by relation,
E’-E”=bv,
Where his planck constant and whenE’&E”are the values of the energy in two states under consideration.
As pointed out by the writer in the papers referred to in the introduction, this assumption offer an immediate interpretation of fundamental principle of combination of spectral line dedused from the measurement of the frequences of series petra of the element. According to the lodge discovered by Balmer,Rydberg&Ritz, The frequencies of the lines of the series spectrum of an element can we expressed by a formula of type,
v=f”(n”)-f”(n”)
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