Describe the Model of an Atom

It was the birth of Quantum Mechanics. Instead he proposed a model where the atom consisted of mostly empty space with all its positive charge concentrated in its center in a very tiny volume that was surrounded by a cloud of electrons.

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Describe Bohrs model of the atom.

. The stability of an atom could not be explained by Rutherfords model. The postulates of Bohrs model are given below. There are some drawbacks in Rutherfords atomic model.

According to Maxwell the energy is emitted in the form of radiation this happens when electric charge is subjected to acceleration. Bohrs model for H atom In 1913 Neils Bohr proposed a physical model to describe the spectrum of the hydrogen atom. Describe the drawback of Rutherfords model of Atom.

He hypothesizes that the angular momentum of an electron in orbit around a proton is quantized ie. Solving for the wavelength of this light gives a value of 4863 nm which agrees with the. So to overcome this and to explain the structure of atoms in detail Neil Bohr in 1912 proposed a model of atoms.

It can only be a discrete multiple of a certain number. According to the Bohr model the wavelength of the light emitted by a hydrogen atom when the electron falls from a high energy n 4 orbit into a lower energy n 2 orbitSubstituting the appropriate values of R H n 1 and n 2 into the equation shown above gives the following result.

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