1.

2. What do you mean by saying that energy of the electron is quantized?

Answer»

Quantisation means that a quantity can't change gradually and continuously but abruptly and discontinuously to have certain definite and discrete values . Bohr postulated that electron can revolve only In fixed orbits in which they canrevolve without gaining or loosing energy. This means energy of electron have certain definite values. So energy of an electron is quantised



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