How are the Bohr and rutherford models of the hydrogen atom related?
Q. In the Bohr model, why is the electron pictured as revolving around th nucleus?
Asked by Preciosa P - Sat Mar 22 14:56:49 2008 - - 1 Answers - 0 Comments
A. Rutherford stated that there must be a dense positive nucleus in the atom and therefore the electrons revolve around it. The only problem with that is that physicists calculated that the electron would eventually crash into the nucleus. Bohr fixed that by saying that the electrons orbited in "shells" in which they did not lose energy. This also explained spectral lines. Bohr added to Rutherford's model to explain what it couldn't.
Answered by Boron - Sat Mar 22 15:09:16 2008
Q. In the Bohr model, why is the electron pictured as revolving around th nucleus?
Asked by Preciosa P - Sat Mar 22 14:56:49 2008 - - 1 Answers - 0 Comments
A. Rutherford stated that there must be a dense positive nucleus in the atom and therefore the electrons revolve around it. The only problem with that is that physicists calculated that the electron would eventually crash into the nucleus. Bohr fixed that by saying that the electrons orbited in "shells" in which they did not lose energy. This also explained spectral lines. Bohr added to Rutherford's model to explain what it couldn't.
Answered by Boron - Sat Mar 22 15:09:16 2008
How to make a 3D bohr model of the element magnesium?
Q. I need to make a bohr model diagram for chemistry. Not sure how to set it up.I know Megnesium has 12 protons, 12 electrons and 12 neutrons. Do i make the nucleus with the 12 protons and neutrons combined?
Asked by Nicole C. - Sat Oct 3 14:02:31 2009 - - 2 Answers - 0 Comments
A. yes, protons and neutrons are found in the nucleus, the electrons are in various energy levels outside the nucleus. magnesium has 3 energy levels: 2 electrons in the 1st level, 8 electrons in the 2nd and 2 electrons in the 3rd level. in the nucleus you would show the 12 neutrons and 12 protons Here is a link to a picture of a bohr model of magnesium:
Answered by unknown - Sat Oct 3 14:18:30 2009
Q. I need to make a bohr model diagram for chemistry. Not sure how to set it up.I know Megnesium has 12 protons, 12 electrons and 12 neutrons. Do i make the nucleus with the 12 protons and neutrons combined?
Asked by Nicole C. - Sat Oct 3 14:02:31 2009 - - 2 Answers - 0 Comments
A. yes, protons and neutrons are found in the nucleus, the electrons are in various energy levels outside the nucleus. magnesium has 3 energy levels: 2 electrons in the 1st level, 8 electrons in the 2nd and 2 electrons in the 3rd level. in the nucleus you would show the 12 neutrons and 12 protons Here is a link to a picture of a bohr model of magnesium:
Answered by unknown - Sat Oct 3 14:18:30 2009
What was the unusual feature of the model of the atom that Bohr proposed?
Q. What was the unusual feature of the model of the atom that Bohr proposed?
Asked by physical science chic - Tue Mar 18 16:45:09 2008 - - 2 Answers - 0 Comments
A. Bohr proposed that electrons travelled around the nucleus in orbits, like planets around the sun instead of a nebulous electron cloud.
Answered by Ann L - Tue Mar 18 18:21:50 2008
Q. What was the unusual feature of the model of the atom that Bohr proposed?
Asked by physical science chic - Tue Mar 18 16:45:09 2008 - - 2 Answers - 0 Comments
A. Bohr proposed that electrons travelled around the nucleus in orbits, like planets around the sun instead of a nebulous electron cloud.
Answered by Ann L - Tue Mar 18 18:21:50 2008
What is an orbital and how is it different from Bohr's orbits?
Q. I understand that an orbit is a 3D region of space around the nucleus where an electron can exist. How are these orbits different from Bohr's orbits?
Asked by BeeBoop - Sun Nov 16 17:47:27 2008 - - 1 Answers - 0 Comments
A. Bohr's orbits are like planetary orbits. they are linear and so not 3-d
Answered by yngathrt - Sun Nov 16 17:52:34 2008
Q. I understand that an orbit is a 3D region of space around the nucleus where an electron can exist. How are these orbits different from Bohr's orbits?
Asked by BeeBoop - Sun Nov 16 17:47:27 2008 - - 1 Answers - 0 Comments
A. Bohr's orbits are like planetary orbits. they are linear and so not 3-d
Answered by yngathrt - Sun Nov 16 17:52:34 2008
What specific info did Bohr contribute to scientists' undering of the atom ?
Q. Describe Bohr's model of the atom . What specific info did Bohr contribute to scientists' undering of the atom ?
Asked by LuvNatalie - Thu Nov 19 22:30:11 2009 - - 0 Answers - 0 Comments
Q. Describe Bohr's model of the atom . What specific info did Bohr contribute to scientists' undering of the atom ?
Asked by LuvNatalie - Thu Nov 19 22:30:11 2009 - - 0 Answers - 0 Comments
How does Bohr's Model relate to regular life?
Q. For my physics class i need to come up with a warm-up. Usually the warm up has something to do with regular life and the topic (bohr's model). Can you help me come up with one? Example: How does Bohr's Model relate to regular life?
Asked by unknown - Wed Sep 30 20:12:20 2009 - - 1 Answers - 0 Comments
A. You're a positive human being constantly being surrounded by a cloud of negativity. lol, Bohr's Model is like an emo model.
Answered by George U - Wed Sep 30 20:21:46 2009
Q. For my physics class i need to come up with a warm-up. Usually the warm up has something to do with regular life and the topic (bohr's model). Can you help me come up with one? Example: How does Bohr's Model relate to regular life?
Asked by unknown - Wed Sep 30 20:12:20 2009 - - 1 Answers - 0 Comments
A. You're a positive human being constantly being surrounded by a cloud of negativity. lol, Bohr's Model is like an emo model.
Answered by George U - Wed Sep 30 20:21:46 2009
How can I use Mathematica to solve the 1-D,time independent Schrodinger Equation and verify the Bohr's radius?
Q. I am using Mathematica 5.2 to solve the 1-D, time independent Schodinger equation (wavefunction). How can I verify the Bohr's radius for ground state Hydrogen atom?
Asked by smgooi - Wed Dec 12 09:08:42 2007 - - 1 Answers - 0 Comments
A. Once you have used separation of variable on the 3D Schrodinger equation, you will have extracted the radial equation, the 1D differential equation for the radial wave function of the hydrogen atom. This equation is shown here: You can use the mathematica function DSolve on the differential equation. If mathematica gives you trouble (it's solutions are somewhat complicated, although easily available online), just set l=0. You can do this, because you really only care about the ground state for finding the Bohr radius. Once mathematica has given you the radial wave functions for l=0, you want to choose the solution of the eigenvalue problem with the lowest energy (the ground state). Find the expectation value of r ( = ) [cont.]
Answered by Anthony Scodary - Wed Dec 12 17:21:22 2007
Q. I am using Mathematica 5.2 to solve the 1-D, time independent Schodinger equation (wavefunction). How can I verify the Bohr's radius for ground state Hydrogen atom?
Asked by smgooi - Wed Dec 12 09:08:42 2007 - - 1 Answers - 0 Comments
A. Once you have used separation of variable on the 3D Schrodinger equation, you will have extracted the radial equation, the 1D differential equation for the radial wave function of the hydrogen atom. This equation is shown here: You can use the mathematica function DSolve on the differential equation. If mathematica gives you trouble (it's solutions are somewhat complicated, although easily available online), just set l=0. You can do this, because you really only care about the ground state for finding the Bohr radius. Once mathematica has given you the radial wave functions for l=0, you want to choose the solution of the eigenvalue problem with the lowest energy (the ground state). Find the expectation value of r (
Answered by Anthony Scodary - Wed Dec 12 17:21:22 2007
According to the Bohr model, what determines the color of light emitted when an electron moves from one energy
Q. According to the Bohr model, what determines the color of light emitted when an electron moves from one energy level to another? help plz!!
Asked by ~~brunette997~~ - Wed Feb 6 17:53:18 2008 - - 3 Answers - 0 Comments
A. This is a matter of the conservation of energy. When an electron changes energy level, there is a certain amount of energy released, based, of course, on the difference between the old energy level of the electron and the new, and that energy, emitted as a photon of that specific energy, is perceived by us as a specific color.
Answered by Midatlantian - Wed Feb 6 18:03:21 2008
Q. According to the Bohr model, what determines the color of light emitted when an electron moves from one energy level to another? help plz!!
Asked by ~~brunette997~~ - Wed Feb 6 17:53:18 2008 - - 3 Answers - 0 Comments
A. This is a matter of the conservation of energy. When an electron changes energy level, there is a certain amount of energy released, based, of course, on the difference between the old energy level of the electron and the new, and that energy, emitted as a photon of that specific energy, is perceived by us as a specific color.
Answered by Midatlantian - Wed Feb 6 18:03:21 2008
What is a bohr model of the element boron?
Q. I am doing an assignment that asks for a bohr model of boron.. however, it is an ION of boron, not a regular atom, so I must deal with valence electrons etc. I know that boron has three valence electrons but I want to know how many should be in the other energy levels, since the ion will have 8 electrons not 5, like a usual atom of boron. Many thanks to whoever answers!!
Asked by Mont07 - Wed Mar 21 18:20:17 2007 - - 1 Answers - 1 Comments
A. The regular boron atom has 2 electrons in the first shell and 3 in the next (outer/valence shell). Boron is a nonmetal, so it will always add electrons to become an ion. It will add 5 electrons in the valence shell, so the boron ion has 2 in the inner shell and 8 in the outer shell.
Answered by DiscoAsimov - Wed Mar 21 18:26:52 2007
Q. I am doing an assignment that asks for a bohr model of boron.. however, it is an ION of boron, not a regular atom, so I must deal with valence electrons etc. I know that boron has three valence electrons but I want to know how many should be in the other energy levels, since the ion will have 8 electrons not 5, like a usual atom of boron. Many thanks to whoever answers!!
Asked by Mont07 - Wed Mar 21 18:20:17 2007 - - 1 Answers - 1 Comments
A. The regular boron atom has 2 electrons in the first shell and 3 in the next (outer/valence shell). Boron is a nonmetal, so it will always add electrons to become an ion. It will add 5 electrons in the valence shell, so the boron ion has 2 in the inner shell and 8 in the outer shell.
Answered by DiscoAsimov - Wed Mar 21 18:26:52 2007
Two questions about electrical conductivity and Bohr representation?
Q. What is the electrical conductivity of Platinum and what is a bohr representation of Platinum? I need Help!!!
Asked by Jenna - Wed Dec 19 20:10:48 2007 - - 1 Answers - 0 Comments
A. By "Bohr representation" do you mean ground state electron configuration? If so, that's [Xe].4f14.5d9.6s1 (Electrons per shell: 2, 8, 18, 32, 17, 1) Electrical conductivity is not something I know off the top of my head.
Answered by jrtomshine - Wed Dec 19 20:20:27 2007
Q. What is the electrical conductivity of Platinum and what is a bohr representation of Platinum? I need Help!!!
Asked by Jenna - Wed Dec 19 20:10:48 2007 - - 1 Answers - 0 Comments
A. By "Bohr representation" do you mean ground state electron configuration? If so, that's [Xe].4f14.5d9.6s1 (Electrons per shell: 2, 8, 18, 32, 17, 1) Electrical conductivity is not something I know off the top of my head.
Answered by jrtomshine - Wed Dec 19 20:20:27 2007
How do I build a Bohr's Model for hydrogen dioxide (H2O) and hydrogen?
Q. I need to build a Bohr's model for hydrogen and H2O for chemistry. I'm not sure what a Bohr's Model looks like for H2O and hydrogen because I can't seem to find good pictures of them online. That makes my project really difficult. Well, I was thinking styrofoam balls and other stuff, but that's really unoriginal. I wanted to make a moving model. You know, with the thing (I don't know what it's called) orbiting around. I'd be willing to build a moving model if I knew how. If anyone would like to give me advice on how to build something like that, that'll be great! But, before that, I need to know what a Bohr's model for hydrogen and H2O look like. Just incase it wouldn't be as fancy as I wanted it to be, at least I'll have something… [cont.]
Asked by Jenn. - Fri Nov 17 01:07:24 2006 - - 1 Answers - 0 Comments
A. H2O has 8 valence electrons resulting to a triatomic bent 109.5 degrees. it will look like this .. .. O / \ h h the 2 dots are lone pairs.. the distance netween the angles should be 109.5 degrees
Answered by bel - Fri Nov 17 01:28:26 2006
Q. I need to build a Bohr's model for hydrogen and H2O for chemistry. I'm not sure what a Bohr's Model looks like for H2O and hydrogen because I can't seem to find good pictures of them online. That makes my project really difficult. Well, I was thinking styrofoam balls and other stuff, but that's really unoriginal. I wanted to make a moving model. You know, with the thing (I don't know what it's called) orbiting around. I'd be willing to build a moving model if I knew how. If anyone would like to give me advice on how to build something like that, that'll be great! But, before that, I need to know what a Bohr's model for hydrogen and H2O look like. Just incase it wouldn't be as fancy as I wanted it to be, at least I'll have something… [cont.]
Asked by Jenn. - Fri Nov 17 01:07:24 2006 - - 1 Answers - 0 Comments
A. H2O has 8 valence electrons resulting to a triatomic bent 109.5 degrees. it will look like this .. .. O / \ h h the 2 dots are lone pairs.. the distance netween the angles should be 109.5 degrees
Answered by bel - Fri Nov 17 01:28:26 2006
How do I make a Bohr model of the element copper?
Q. My son has a science project in school and needs to make a atomic model of copper. Any suggestions?
Asked by jeanie - Sat Nov 24 11:21:38 2007 - - 1 Answers - 0 Comments
A. These links have figures that show copper's "Bohr model." But rember, a Bohr model just represents electron shell structure - not what a copper atom would look like. Copper has a face-centered-cubic (fcc) configuration. This lattice is one of the most common types of crystal lattices. In addition to the eight atoms located at the corners of the cube, the face-centered cell contains an additional atom on each face of the cube.
Answered by Metallic stuff - Sun Nov 25 15:29:08 2007
Q. My son has a science project in school and needs to make a atomic model of copper. Any suggestions?
Asked by jeanie - Sat Nov 24 11:21:38 2007 - - 1 Answers - 0 Comments
A. These links have figures that show copper's "Bohr model." But rember, a Bohr model just represents electron shell structure - not what a copper atom would look like. Copper has a face-centered-cubic (fcc) configuration. This lattice is one of the most common types of crystal lattices. In addition to the eight atoms located at the corners of the cube, the face-centered cell contains an additional atom on each face of the cube.
Answered by Metallic stuff - Sun Nov 25 15:29:08 2007
What year did Niels Bohr make his discovery?
Q. What year did Niels Bohr make the discovery that energy levels of electrons are quantized (only existing in certain, specific levels)?
Asked by Mal522 - Mon Feb 9 23:43:12 2009 - - 3 Answers - 0 Comments
A. 1913
Answered by PWD - Mon Feb 9 23:46:55 2009
Q. What year did Niels Bohr make the discovery that energy levels of electrons are quantized (only existing in certain, specific levels)?
Asked by Mal522 - Mon Feb 9 23:43:12 2009 - - 3 Answers - 0 Comments
A. 1913
Answered by PWD - Mon Feb 9 23:46:55 2009
What do the Bohr and Rutherford models of the atom have in common?
Q. Other than both suggested the presence of a positively-charged central core, and that electrons surrounded this core.
Asked by orangenurse - Sun Sep 30 17:50:07 2007 - - 1 Answers - 0 Comments
A. I think they both thought that electons orbited around the nucleus like planets around the sun.
Answered by Elena - Sun Sep 30 17:57:33 2007
Q. Other than both suggested the presence of a positively-charged central core, and that electrons surrounded this core.
Asked by orangenurse - Sun Sep 30 17:50:07 2007 - - 1 Answers - 0 Comments
A. I think they both thought that electons orbited around the nucleus like planets around the sun.
Answered by Elena - Sun Sep 30 17:57:33 2007
How does the emission spectrum contribute to the Bohr Model?
Q. I'm at a lost for how photon emissions prove that electrons move around the nucleus of an atom. Any clarification is much appreciation, thanks!
Asked by lirael1019 - Sun Sep 30 12:56:53 2007 - - 1 Answers - 0 Comments
A. The photon emission from atoms does not prove that electrons move around the nucleus. The story behind the Bohr model is much more complicated. I'll try and make a short summary here: Rutherford, not Bohr, was the person who performed the experiments showing that atoms consisted of a positive heavy nucleus and an electron cloud around it, by looking at positive and negative charges emitted from metal foils bombarded with alpha radiation. Planck studied black body radiation, which is basically the light color spectrum emitted by hot filaments (like a light bulb). The black body spectrum is a contineous spectrum, i.e. all wavelengths occur. He found a mathematical formula that exactly described the visible and infra-red part of the black… [cont.]
Answered by Gerard V - Sun Sep 30 14:13:09 2007
Q. I'm at a lost for how photon emissions prove that electrons move around the nucleus of an atom. Any clarification is much appreciation, thanks!
Asked by lirael1019 - Sun Sep 30 12:56:53 2007 - - 1 Answers - 0 Comments
A. The photon emission from atoms does not prove that electrons move around the nucleus. The story behind the Bohr model is much more complicated. I'll try and make a short summary here: Rutherford, not Bohr, was the person who performed the experiments showing that atoms consisted of a positive heavy nucleus and an electron cloud around it, by looking at positive and negative charges emitted from metal foils bombarded with alpha radiation. Planck studied black body radiation, which is basically the light color spectrum emitted by hot filaments (like a light bulb). The black body spectrum is a contineous spectrum, i.e. all wavelengths occur. He found a mathematical formula that exactly described the visible and infra-red part of the black… [cont.]
Answered by Gerard V - Sun Sep 30 14:13:09 2007
How do the electrons on a bohr model alternate?
Q. I am working on my 8th grade science project in which i have to create a 3d model of a carbon atom. Now, since the atom has 6 electrons, how many go on each ring?
Asked by Dan - Tue Apr 28 20:42:17 2009 - - 2 Answers - 0 Comments
A. 2 on first and 4 on second
Answered by Somu - Tue Apr 28 20:50:39 2009
Q. I am working on my 8th grade science project in which i have to create a 3d model of a carbon atom. Now, since the atom has 6 electrons, how many go on each ring?
Asked by Dan - Tue Apr 28 20:42:17 2009 - - 2 Answers - 0 Comments
A. 2 on first and 4 on second
Answered by Somu - Tue Apr 28 20:50:39 2009
What are some applications of the Bohr model in life?
Q. What can i explain using the Bohr model?
Asked by Artardo - Thu May 14 20:24:20 2009 - - 1 Answers - 0 Comments
Q. What can i explain using the Bohr model?
Asked by Artardo - Thu May 14 20:24:20 2009 - - 1 Answers - 0 Comments
How does Bohr's atomic model compares with that of Rutherford's model?
Q. a) Calculate the energy of an electron in the second Bohr orbit of a hydrogen atom. b) If the energy difference between the ground state of an atom and its excited stage is 5.4 x 10 (to the power of -19), what is the wavelength of the photon required producing this transition.
Asked by hani - Mon Jun 29 07:21:38 2009 - - 1 Answers - 0 Comments
Q. a) Calculate the energy of an electron in the second Bohr orbit of a hydrogen atom. b) If the energy difference between the ground state of an atom and its excited stage is 5.4 x 10 (to the power of -19), what is the wavelength of the photon required producing this transition.
Asked by hani - Mon Jun 29 07:21:38 2009 - - 1 Answers - 0 Comments
what is the difference between an atomic model and a Bohr diagram of an element?
Q. science project... could some one give me a link to a site that show both of these for sodium?
Asked by rockin' chic - Wed Jan 2 21:55:15 2008 - - 1 Answers - 0 Comments
A. The atomic model would show the proper " cloud " of electron orbitals, while the Bohr model would show circular orbits. This should be a easy google using some of these terms.
Answered by jonmcn49 - Wed Jan 2 22:44:05 2008
Q. science project... could some one give me a link to a site that show both of these for sodium?
Asked by rockin' chic - Wed Jan 2 21:55:15 2008 - - 1 Answers - 0 Comments
A. The atomic model would show the proper " cloud " of electron orbitals, while the Bohr model would show circular orbits. This should be a easy google using some of these terms.
Answered by jonmcn49 - Wed Jan 2 22:44:05 2008
What do you do when you have more than 20 electrons on the Bohr Diagram?
Q. What do you do when you have more than 20 electrons on the Bohr Diagram? For example, If you had Lead (ZN), with 30 electrons, where would you add the extra 10?
Asked by Alex V - Sun Feb 8 17:57:32 2009 - - 1 Answers - 0 Comments
Q. What do you do when you have more than 20 electrons on the Bohr Diagram? For example, If you had Lead (ZN), with 30 electrons, where would you add the extra 10?
Asked by Alex V - Sun Feb 8 17:57:32 2009 - - 1 Answers - 0 Comments
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218 1997 5 M Bohr Interconnect scaling The real limiter to high performance ULSI International Electron Devices Meeting Technical Digest pp 241 244 1995 About the Author Mark Bohr is an Intel Senior Fellow and Director of Process Architecture and Integration He is a member of Intel s Logic Technology Development group located in Hillsboro Oregon where he
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i know what . bohr's. four postulates are, but i'm not familiar with the measurements of the hydrogen gas spectrum, so i don't really know how they affected them.. can anyone tell me? how did the four postulates explain observations and ...
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