91Ó°ÊÓ

Neil Bohr proposed the Bohr model of the atom in 1915. It was created by the modification of Rutherford's atomic model. The nuclear model of an atom was developed by Rutherford, who indicated that a positively charged nucleus is surrounded by negatively charged electrons.

The features of Bohr model of hydrogen are consistent by the quantum mechanics are-

1. If an electron jumps from the higher energy level to lower energy level, then the difference in the energy level will be emitted in the form of photon radiation.
2. Bohr model predicts the correct energy levels of the hydrogen.

The features of the Bohr model had to be abandoned are -

1. The electron moves in distinct circular orbits. It is replaced by the picture of a probabilistic electron cloud.
2. The quantization rules in a hydrogen atom are more complex than those that are assumed in the Bohr model.