how did niels bohr contribute to the understanding of atomic structure

Answer 1

Niels Bohr made several contributions to the understanding of atomic structure. One of his major contributions was the concept of energy levels or shells. He proposed that electrons orbit the nucleus at discrete energy levels or shells, rather than continuously, which explained the stability of atoms and why they do not collapse.

Bohr also introduced the idea of quantization, which explained the discrete nature of atomic spectra. He suggested that electrons emit or absorb energy in fixed amounts or quanta, which corresponded to the difference in energy between the energy levels. This helped to explain the characteristic spectral lines of different elements.

In addition, Bohr's model of the atom demonstrated the relationship between the spectral lines and the energy levels, which laid the foundation for the understanding of atomic structure and quantum mechanics. His work was crucial in the development of modern physics and led to the discovery of many important phenomena, such as the Bohr effect in hemoglobin and the Bohr radius in atomic physics.