Mon May 14, 2012 By: Prema Chauhan

how is the radius of Bohr's orbit (r) is related to its energy level in hydrogen atom and hydrogen like atoms?

Expert Reply
Tue May 15, 2012
The Bohr model for an electron transition in hydrogen between quantized energy levels with different quantum numbers n yields a photon by emission with quantum energy:
This is often expressed in terms of the inverse wavelength or "wave number" as follows:
Going on, we can calculate the net energy (kinetic plus potential) of an electron in the   Bohr orbital of the H atom: 


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