explain the prostulate of bhors model of atom ? how does it this model og atom explain it stability of the atom.
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he gave the explanation of stationary orbits ,quantum conditions, transition condition,
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The Rutherford model had a major drawback, it could not explain why electrons do not fall into the nucleus by taking a spiral path.
It was in concurrence with the electromagnetic theory that states "if a charged particle undergoes accelerated motion, then it must radiate energy (lose) continuously".
The objections of Rutherford atomic model was contested by Niels Bohr atomic model in 1913. Niels Bohr proposed the quantum theory of an atom. The theory was based on the quantum theory of radiation. Bohr retained the main postulates of Rutherford planetary model and did some medication on the basis of quantum physics. Hence, Bohr atomic model is also known as Rutherford-Bohr atomic model.
He depicts the atom as a tiny, spherical body which consists nucleus at center and negatively charged particles (electrons) revolving around nucleus in a certain path known as orbit. He proposed some new postulate with same basis concepts of Rutherford theory.
Bohr's Atomic Model
In order to explain the stability of an atom, Neils Bohr gave a new arrangement of electrons in the atom in 1913. According to Neils Bohr, the electrons could revolve around the nucleus in only 'certain orbits'(energy levels), each orbit having a different radius.
When an electron is revolving in a particular orbit or particular energy level around the nucleus, the electron does not radiate energy (lose energy) even though it has accelerated motion around the nucleus.
It was in concurrence with the electromagnetic theory that states "if a charged particle undergoes accelerated motion, then it must radiate energy (lose) continuously".
The objections of Rutherford atomic model was contested by Niels Bohr atomic model in 1913. Niels Bohr proposed the quantum theory of an atom. The theory was based on the quantum theory of radiation. Bohr retained the main postulates of Rutherford planetary model and did some medication on the basis of quantum physics. Hence, Bohr atomic model is also known as Rutherford-Bohr atomic model.
He depicts the atom as a tiny, spherical body which consists nucleus at center and negatively charged particles (electrons) revolving around nucleus in a certain path known as orbit. He proposed some new postulate with same basis concepts of Rutherford theory.
Bohr's Atomic Model
In order to explain the stability of an atom, Neils Bohr gave a new arrangement of electrons in the atom in 1913. According to Neils Bohr, the electrons could revolve around the nucleus in only 'certain orbits'(energy levels), each orbit having a different radius.
When an electron is revolving in a particular orbit or particular energy level around the nucleus, the electron does not radiate energy (lose energy) even though it has accelerated motion around the nucleus.
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