Bohr model was a much improved version of the atomic model compared to the earlier model proposed by Rutherford. Bohr proposed that the electrons travels in a circular orbit with a specific energy levels. In the earlier atomic model, it was explained that the electrons forms circles around the nucleus like the planets revolves around the sun. This model was unable to explain the different atomic line of spectra. It was also not able to explain the reason behind the colours of the metals and why certain compounds gives out heat. However, Bohr improved the atomic model and explained that the electrons revolves in the orbits round the nucleus and the orbits have a specific level of energy. Bohr model stated that electrons can easily jump from one energy level to another energy level. However, it cannot be at any place between the various energy levels. The electrons are responsible to emit energy while they are jumping from one energy level to another. However, the Bohr model consists of a lot of modification as it clearly explained the reason why the light emitted by atoms comprises of lines of different colours. It also clears out that when the atom of a metal is heated it means that the atom has absorbed certain amount of energy while jumping to a higher energy levels. This is reverse when the electrons get back to the lower energy levels where they generally emit certain amount of energies in the form of packets. These energies are responsible for giving color to the spectra. The earlier models were unable to explain the Rutherford atomic model and was unable to explain the Maxwell electromagnetic radiation of energy. In the Bohr model he clearly calculated the and stated that electrons are the reason that the electrons are not losing any energy as they are meant to revolve around the specific orbits which is termed as discrete orbits. He also stated that the orbits consist of angular momentum which is the multiple of nh/2pie. One of the most important and significant contribution of Bohr is the quantization of the model. He believed that the electrons move around the nucleus in an orbit which is circular in shape and consists of both the kinetic energy and the quantized potential. This was the reason that electrons cannot occupy any other energy levels of their choice. The atomic model of Bohr was proposed in the year of 1913. The electrons of the earlier model were not stable, Bohr proposed model were the atoms were stable and clearly stated that the electrons consist of specific energy and size. Bohr stated that the orbits are stable and are also known as the stationary orbits. He stated that the electrons are restricted to their specific orbits. An electron can only jump while it is jumping from one orbit to another either it emits energy in the form of photons or rather it absorbs energy. Bohr atomic model is a detailed version of atoms and the movement of the electrons.
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