Wikipedia states that
The electrons can only orbit stably, without radiating, in certain orbits (called by Bohr the "stationary orbits") at a certain discrete set of distances from the nucleus. These orbits are associated with definite energies and are also called energy shells or energy levels. In these orbits, the electron's acceleration does not result in radiation and energy loss as required by classical electromagnetic.
How can you just say anything? Is there any proof of this statement ? I mean, electrons are also objects and they must follow the classical theories!
PS- Please try not to use QM, as Bohr did not explain this stuff by QM!
