Wikipedia
bohr model : In atomic physics, the Bohr model, devised by Niels Bohr, depicts the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus—similar in structure to the solar system, but with electrostatic forces providing attraction, rather than gravity. This was an improvement on the earlier cubic model ( 1902), the plum-pudding model ( 1904), the Saturnian model ( 1904), and the Rutherford model ( 1911). Since the Bohr model is a quantum physics-based modification of the Rutherford model, many sources combine the two, referring to the Rutherford–Bohr model. Introduced, by Niels Bohr, in 1913, the model's key success lay in explaining the Rydberg formula for the spectral emission lines of atomic hydrogen. While the Rydberg formula had been known experimentally, it did not gain a theoretical underpinning until the Bohr model was introduced. Not only did the Bohr model explain the reason for the structure.. More from Wikipedia
bohr model : The Soliton model in neuroscience is a recently developed model that attempts to explain how signals are conducted within neurons. It proposes that the signals travel along the cell's membrane in the form of certain kinds of sound (or density) pulses known as solitons. As such the model.. More from Wikipedia
Bohr's Model of an Atom
Bohr's Model of an Atom - Rutherford's model had a major drawback. It could not explain why ultimately electrons did not fall into the nucleus by taking a spiral path. This was in concurrence with the electromagnetic theory that states 'if a charged particle undergoes ..
Bohr's Model of an Atom - Rutherford's model had a major drawback. It could not explain why ultimately electrons did not fall into the nucleus by taking a spiral path. This was in concurrence with the electromagnetic theory that states 'if a charged particle undergoes ..Animation of Bohr's Model
Atomic Structure..
Atomic Structure.. Introduction to Bohr Model
better sound quality- www.youtube.com A very dated but informative educational video describing the Bohr model (electron configeration) which could be described as the birth of Quantum Mechanics. More vids- www.shep.net More info- en.wikipedia.org
Question : According to the Bohr model, what determines the color of light emitted when an electron moves from one energy level to another?
Answer : the color of light emmited is proportional to frequency, or alternatively wavelength of energy which is emitted in quanta of electro-magnetic radiation (photons of light) that have exactly the same energy as the difference in energy between the orbits jumped by the electron. For hydrogen, when an electron returns to the second orbital (n = 2) it emits a photon with energy that corresponds to a particular color or spectral line found in the Balmer series of lines located in the visible portion of the electromagnetic (light) spectrum. The particular color in the series depends on the higher orbital from which the electron jumped. P/S Katie you copy and paste a wrong answer from here; http://answers.yahoo.com/question/index?qid=20060622151104AA5Fxh1.. More from Yahoo Answers
Answer : the color of light emmited is proportional to frequency, or alternatively wavelength of energy which is emitted in quanta of electro-magnetic radiation (photons of light) that have exactly the same energy as the difference in energy between the orbits jumped by the electron. For hydrogen, when an electron returns to the second orbital (n = 2) it emits a photon with energy that corresponds to a particular color or spectral line found in the Balmer series of lines located in the visible portion of the electromagnetic (light) spectrum. The particular color in the series depends on the higher orbital from which the electron jumped. P/S Katie you copy and paste a wrong answer from here; http://answers.yahoo.com/question/index?qid=20060622151104AA5Fxh1.. More from Yahoo Answers
Question : If you consider the Bohr model of the atom, where the proton and electron act as two bodies of mass, and the electron escapes from the pull of the proton with the energy -13.6 eV, how is this similar to the energy needed for one body of mass, like a planet, to escape the gravitational force of another planet? Please explain!
Answer : In both, there is a force that is pulling each 'satellite' (electron or planet) towards a center (the proton or the other planet). It's just that in one it's electromagnetic and the other is gravitational. You can think of the -13.6eV as the force needed to acquire escape velocity for the planets model. I dunno if this helped, but I hope it did. :).. More from Yahoo Answers
Answer : In both, there is a force that is pulling each 'satellite' (electron or planet) towards a center (the proton or the other planet). It's just that in one it's electromagnetic and the other is gravitational. You can think of the -13.6eV as the force needed to acquire escape velocity for the planets model. I dunno if this helped, but I hope it did. :).. More from Yahoo Answers
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