Question

What do you mean by quantization of electronic energy and angular momentum?

Answer 1

Quantization of angular momentum means that the radius of the orbit and the energy will be quantized as well. Bohr assumed that the discrete lines seen in the spectrum of the hydrogen atom were due to transitions of an electron from one allowed orbit/energy to another.

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Answer 2

Explanation:

Quantization of energy means that the the motion of an electron is not free and they will be found in only certain discrete energy states. Angular momentum can be related to the rotation or revolution of matter. Angular momentum can be though as a rotational analog of the linear momentum.