What is the experimental evidence in support of the diea that electronic energies in an atom are quantized?

What is the experimental evidence in support of the idea that electronic energies in an atom are quantized?

Bohr's model enables us to derive the energy of an electron revolving in nth orbit. For H-atom and hydrogen like species : E_n = (2 pi^2 m e^4 Z^2)/(n^2 h^2) or = - (13.6 Z^2)/(n^2) eV "atom"^(-1) = (21.8 xx 10^(-19) Z^2)/(n^2) J "atom"^(-1) This helps to calculate the radius of an orbit, r_n = (0.529 n^2)/(Z) Å Bohr's model also explains the occurrence of different spectral lines. The wavelengths of difference line can be given as : 1/lambda = barv ("in" cm^(-1)) = R (1/(n_1^2) - 1/(n_2^2)) R = 109678 cm^(-1) and n_2 > n_1 . What is the experimental evidence in support of the fact that electronic energies in an atom are quantized ?

Who provided experimental evidences in support of chemical evolution of life?

What experimental evidence requires that the emission of energy by an atom must be quantized.

What are the evidences in support of the continental drift theory?

Name two evidences in support of Lamarcksim.

Name two evidences in support of Lamarckism.

Which experimental evidence most clearly supports the suggestion that electrons have wave properties ?