Answer 1:
He improved on Rutherford's model by showing that electrons don't spiral inward to the core of the nucleus. Instead the electrons are on a set course.
Answer 2:
Another significant advantage of Bohr's model over Rutherford's, as well its accounting for the stability of atoms (as noted in the previous answer), was its ability to account for the observed wavelengths of the spectral lines, at least for hydrogen.
Although some aspects of the model were unsatisfactory (its rather ad hoc nature, the difficulty in applying it to multi-electron atoms, etc.), this remarkable agreement with experiment was a strong indication that Bohr's thinking was along the right lines. As we now know, Bohr's basic postulates were quite correct: the orbital angular momentum of electrons is indeed quantised, and electrons transition between allowed states by absorbing or emitting photons. Both of these assumptions became predictions of the quantum theory which was soon to follow.
Bohr's model was able to explain the reason for motion of electrons around the nucleus and why the electrons do not fall in the nucleus even when they move in circular motion and accelerate and loose energy.
This was the factor which was not explained by the Rutherford.
Niels Bohr introduced the notion of electronic orbits.
Answer 1:
He improved on Rutherford's model by showing that electrons don't spiral inward to the core of the nucleus. Instead the electrons are on a set course.
Answer 2:
Another significant advantage of Bohr's model over Rutherford's, as well its accounting for the stability of atoms (as noted in the previous answer), was its ability to account for the observed wavelengths of the spectral lines, at least for hydrogen.
Although some aspects of the model were unsatisfactory (its rather ad hoc nature, the difficulty in applying it to multi-electron atoms, etc.), this remarkable agreement with experiment was a strong indication that Bohr's thinking was along the right lines. As we now know, Bohr's basic postulates were quite correct: the orbital angular momentum of electrons is indeed quantised, and electrons transition between allowed states by absorbing or emitting photons. Both of these assumptions became predictions of the quantum theory which was soon to follow.
Bohr's model was able to explain the reason for motion of electrons around the nucleus and why the electrons do not fall in the nucleus even when they move in circular motion and accelerate and loose energy.
This was the factor which was not explained by the Rutherford.
It established that a large volume of space surrounds the atomic nucleus.
The main difference between Thomson and Rutherford model of atom is that Thomson model does not give details about the atomic nucleus whereas Rutherford model explains about the nucleus.
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Niels Bohr introduced the notion of electronic orbits.
No. Before the Bohr model ,the most accepted model was the Rutherford model of the atom. Before that there was the plum-pudding model.
Rutherford's atom compared to the model proposed by his student Neils Bohr is very similar. Rutherford proposed a small positively charged nucleus with electrons orbiting around it. Bohr improved on this model by adding quantized energy levels to the orbits of electrons around positively charged nucleus.
Bohr model explain these spectra.
Neil's Bohr developed his model of the atom in 1931 as a student of Rutherford. This model suggested that electrons orbited in concentric circles around the nucleus at discrete energy levels.
its was Ernest Rutherford who proposed the planetary atomic model
Niels Bohr introduced the notion of electronic orbits.
Now, an advanced model derived from the Niels Bohr theory.
Bohr-Rutherford
No. Before the Bohr model ,the most accepted model was the Rutherford model of the atom. Before that there was the plum-pudding model.
Before Rutherford, scientists assumed that the atom was a single particle. Rutherford presented his revolutionary, physical atomic model that suggested an atom consists of a central charge (the term 'nucleus' was coined after Rutherford's model was presented) that is surrounded, presumably, by a cloud of orbiting electrons. He showed that most of an atom's mass was located in the atom's nucleus. Rutherford's model was later improved upon by Niels Bohr, father of the Bohr-model. Rutherford made no connection to an element's atomic number and the number of protons within an atom's nucleus; however, his atomic model paved the way for the discovery of this correlation only a couple years after his model was designed.
Rutherford's atom compared to the model proposed by his student Neils Bohr is very similar. Rutherford proposed a small positively charged nucleus with electrons orbiting around it. Bohr improved on this model by adding quantized energy levels to the orbits of electrons around positively charged nucleus.
Rutherford's atom compared to the model proposed by his student Neils Bohr is very similar. Rutherford proposed a small positively charged nucleus with electrons orbiting around it. Bohr improved on this model by adding quantized energy levels to the orbits of electrons around positively charged nucleus.
Niels Bohr (1885-1962) was a young Danish physicist and a student of Rutherford. He believed Rutherford's model needed improvement. So in 1913 Bohr changed Rutherford's model to include newer discoveries about how the energy of an atom changes when it absorbs or emits light. He considered the simplest atom, hydrogen, which has one electron. Bohr proposed that an electron is found only in specific circular paths, or orbits, around the nucleus. With help from your mother of course .
The Bohr Model is the modern name used by scientist for a model of an atom, which is often referred to as the Rutherford-Bohr model due to the fact that Neils Bohr just improved Ernest Rutherfords model.
Bohr model explain these spectra.
The current model of an atom is called the Bohr model.