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April 23, 2014

Search: Science-Bohr Model 2

Number of results: 53,715

science
in an atom electrons move in definite orbits around the nucleus much like planets cirlce the sun. who said this - I think Bohr choices are: Bohr rutherford wave model Thompson democritius
Friday, November 2, 2007 at 10:34pm by sam

physics
please someone give me a hand at this problem. . . Describe the Bohr model of the atom. What is Bohrís key idea (involving matter waves) that makes the Bohr atom have discrete energy levels?
Saturday, November 10, 2007 at 7:45am by Veronica

Physical Science
Please use the Bohr model simulator at Michigan State University to complete the table below: initial orbital ending orbital Wavelength (nm) 3 2 4 2 2 434 2 410.2 7 2 397 4 3 5 3 Bohr Model Simulation McGraw-Hill (Java)
Thursday, June 10, 2010 at 10:54am by renea

physics
1.Distinguish between atomic physics and nuclear physics? 2.Briefly describe the Bohr model of the atom. What is Bohrís key idea (involving matter waves) that makes the Bohr atom have discrete energy levels? I really didnt understand what they were wanting, so many of ...
Tuesday, November 6, 2007 at 10:53am by Will

physics
1. I will be happy to critique your thinking. 2. As I stated previously, Bohr had no idea of matter waves existing. If your teacher or text is teaching that, it is nonsense. Disregard that idea. Bohr had no idea why the energy levels were discrete. Bohr just postulated the ...
Tuesday, November 6, 2007 at 10:53am by bobpursley

Chemistry
The Bohr model stops representing correct atomic structure when? Why? What does this mean for remaining atoms? How does Bohr's model relates to the periodic table?
Tuesday, October 19, 2010 at 9:24pm by Katie

Physics
Describe the Bohr model of the atom. What is de Broglie's key idea (involving matter waves) that makes the Bohr atom have discrete energy levels?
Monday, November 16, 2009 at 3:10pm by Lauren

science
Bohr is right
Friday, November 2, 2007 at 10:34pm by DrBob222

Science-Bohr Model 2
Oh, thank you for explaining that to me:-)
Tuesday, April 13, 2010 at 10:32pm by Sara

Science-Bohr Model 2
Thank you very much:-)
Tuesday, April 13, 2010 at 10:23pm by Sara

Science
Why is the Bohr Theory incompatible with the uncertainty principle?
Sunday, October 9, 2011 at 11:17pm by Sheryl

science
Why is the Bohr Theory incompatible with the uncertainty principle?
Sunday, October 9, 2011 at 11:22pm by Sheryl

Science
how do you draw a bohr diagram of a atom and a ion and how are they different????
Wednesday, February 12, 2014 at 10:22pm by Mariah

Physics
Can you please help me with the following questions. Thanks! How does Rutherford's model of the atom acoount for the back-scattering of alpha particles directed at the gold leaf? What is Bohr's key idea (involving matter waves) that makes the Bohr atom have discrete engergy ...
Monday, November 5, 2007 at 7:00pm by Soly

Physics
The very high positive charge at the center will stop and repel any incoming positive charges. Bohr having matter wave thoughts? Must be a new revision of history. Bohr key premise was that electrons occupied only allowed levels, he could not explain why.
Monday, November 5, 2007 at 7:00pm by bobpursley

Science
need info about Niels Bohr's quantum theory????????
Tuesday, May 27, 2008 at 10:31pm by Sam

physics
Explain what ideas led Bohr to suggest a new atomic model; and state Bohr postulates. Explain also, in words, what the correspondence principle is in atomic physics.
Tuesday, April 19, 2011 at 7:35am by qwer

Science
Thank you for using the Jiskha Homework Help Forum. Beginning with a bio tells you often why the person did what was done: 1. http://nobelprize.org/nobel_prizes/physics/laureates/1922/bohr-bio.html 2. http://www.crystalinks.com/bohr.html 3. (Bohr's model): http://www....
Tuesday, May 27, 2008 at 10:31pm by SraJMcGin

Science-Bohr Model 2
Excuse me but if oxygen GAINS two electrons, its charge will be -2 (if zero initially).
Tuesday, April 13, 2010 at 10:32pm by DrBob222

Science-Bohr Model 2
Oh yeah, thanks for reminding me about that DrBob222, I had totally forgotten. I was thinking oppositely.
Tuesday, April 13, 2010 at 10:23pm by Sara

chemistry
1. what do the spectral lines represent in the bohr atomic model? 2. What do the black spaces represent in the Bohr atomic model?
Tuesday, March 18, 2008 at 4:41pm by jojo

Science please help
Draw Bohr diagrams of a magnesium atom bonding with fluorine atoms. Draw atoms then electron transfer and finally the ions that form. What type of bonding occurs? Draw Bohr diagrams of 2 hyrdogen atoms bonding with an oxygen atom by sharing electrons to form a water molecule. ...
Monday, March 3, 2014 at 12:36am by Anonymous

physical science
compare the postions of the electrons in Bohr's model of the atom with their positions according to modern atomic theory
Wednesday, October 15, 2008 at 10:10pm by taylor

Science
Try some of the following links: http://search.yahoo.com/search?fr=mcafee&p=Why+is+the+Bohr+Theory+incompatible+with+the+uncertainty+principle%3F+ Sra
Sunday, October 9, 2011 at 11:17pm by SraJMcGin

Chemistry
What is the empirical distinction between emission and absorption spectra? In general terms, how did Niels Bohr explain each of these spectra? In general terms, emission spectra are obtained when the electron is at a high energy level and it falls to a lower energy level. In ...
Wednesday, February 7, 2007 at 6:41pm by Raj

science
How did Rutherford, bohr, and quantum geiger-marden metail-foil experiments contradict thomas's raisin pudding model of the atom?
Friday, November 8, 2013 at 9:47am by Grace Peterson

Physics
Could someone help me with these questions. . . please 1. How does Rutherfordís model of the atom account for the back Ė scattering of alpha particles directed at the gold leaf 2. The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. ...
Monday, November 12, 2007 at 2:40pm by Mike

phsyical science
how the path of an electron differs in Bohr's Model and in the modern model of the atom
Wednesday, October 15, 2008 at 10:21pm by Anonymous

science
explain how the path of an electron differs in Bohr's model and in the modern model of the atom
Friday, December 18, 2009 at 9:59am by spooky

phyical science
explain how the path of an electron differs in bohr's model and in the modern model of the atom
Wednesday, October 15, 2008 at 10:17pm by taylor

Physical Science
Explain how the path of an electron differs in Bohr's model and in the modern model of the atom.
Saturday, November 29, 2008 at 3:47pm by Janisha

phsyical science
explain how the path of an electron differs in Bohr's model and in the modern model of the atom
Sunday, December 12, 2010 at 7:13pm by darmisha

Physical Science
In case you ever need them, here are some tutorials: http://search.yahoo.com/search?fr=mcafee&p=tutorials+for+Bohr+model+simulator+at+Michigan+State+University Sra
Thursday, June 10, 2010 at 10:54am by SraJMcGin

Chemistry
Draw Bohr diagrams of the following: A) O and O2- I know how to draw the regular O bohr diagram. 2 electrons in the first shell, and 6 in the outer one, but I don't get how to draw a 02- diagram. Do I just take away 2 electrons from the outer shell?
Saturday, September 18, 2010 at 5:52pm by Anonymous

science
an atom is the smallest piece of matter which model does this describe Democrtius dalton Rutherford Thompson Bohr Wave Model
Friday, November 2, 2007 at 10:11pm by sam

Physics
I have answered these before. Please do some independent research to verify my answers. Google is a good start. Your text might be a good second place, although it it mentions Bohr's matter waves, I would toss the text without hesitation, as I stated before. It was DeBroglie ...
Monday, November 12, 2007 at 2:40pm by bobpursley

phsyical science
Here's a search on both. If it doesn't work, try a separate search: http://search.yahoo.com/search?fr=mcafee&p=explain+the+path+of+an+electgr+on+in+Bohr%27s+model+%26+in+the+modern+m+odel+of+the+atom Sra
Sunday, December 12, 2010 at 7:13pm by SraJMcGin

physical science
compare the positions of the electrons in bohr's model of the atom with their positions according to modern atomic theory. state the importance of valece electrons in the organization of the periodic table
Monday, June 18, 2007 at 10:27am by rodney

Physics
The radius of a Bohr orbit increases with the square of the quantum number, n. So the principal quantum number would have to increase by a factor of sqrt2. This will not be possible since the quantum number must remain an integer. Your teacher may not be aware of this. In ...
Sunday, April 4, 2010 at 10:46am by drwls

Science
It is likely that they are looking for a Bohr type model, so concentric rings of electrons around a nucleus of protons and neutrons. You will need to use a periodic table to find the number of protons, neutrons.
Friday, March 21, 2008 at 3:17am by DrRuss

science
an atom is made of a positively charged nucleus surrounded by a large region in whci hscientists can predict where an electron is likey to be found. I think this is attributed to rutherford choices are: rutherford, wave model, thompson, dalton or bohr.
Friday, November 2, 2007 at 11:06pm by sam

Science-Bohr Model 2
compare the # of empty spaces in the outer shell of the non-metals with the ion charges. whats the relationship? I dont get this question, can someone please explain. What empty spaces is it referring to ?
Tuesday, April 13, 2010 at 10:32pm by Sara

science
I choose these 3 as dalton atoms of same element are exactly alike atoms are invinsible atoms are smallest piece of matter choices were dalton rutherfird wave model bohr democritius
Friday, November 2, 2007 at 10:26pm by sam

Chemistry
Can you please help me figure out this fill in the blank? Okay here it goes: Neils Bohr stated the structure was similar to the _________________ of our galaxy. and the other is: The Rutherford experiment led tot the discovery of the ___________. Thank You!!!!!! Rutherford is ...
Sunday, October 15, 2006 at 9:50am by Slow Jamz

Chemistry
Yes 13 But the 12 electrons are in different shells. http://www.green-planet-solar-energy.com/images/magnesium-bohr.gif
Thursday, July 8, 2010 at 6:25pm by Damon

science
Are these correct for Democritius Help so confused - I read site and still trying to figure out. atoms of same element are exactly alike an atom is mostly empty space with a dense - postiveily chareged nucleus These are the choices Rutherford wave model dalton Bohr democritus
Friday, November 2, 2007 at 10:32pm by sam

Science-Bohr Model 2
how many shells r needed 4 the elements in each of the 1st rows of the periodic table. Im kind of getting confused. When it says rows; does it refer to groups or no? I referred rows to the groups for my last question and came up with a pattern, but now I'm unsure of of myself.
Tuesday, April 13, 2010 at 11:12pm by Sara

Physics
Electrons are quantized in their orbits. This means that they can change energy levels but only if the right quantum of energy comes along. They will accept the quantum of energy if it is the right amount to allow them to make the jump to the next energy level. They will ...
Tuesday, April 1, 2008 at 10:52pm by DrBob222

chemistry
I suppose that's the Bohr model.
Monday, December 3, 2012 at 2:59pm by DrBob222

Science-Bohr Model 2
For the metal elements, whats the connection between the ion charge and the # of electrons in the outershell? I wrote: The ion charge is positive for all metal elements and the electron # increases. please add any other info, thanks
Tuesday, April 13, 2010 at 10:23pm by Sara

chemistry
What was Bohr's theory of behavior of the electron?
Wednesday, October 28, 2009 at 2:43pm by kate

science
Try here: http://www.google.com/search?q=how+the+path+of+an+electron+differs+in+bohr%27s+model+%26+in+the+modern+model+of+the+atom&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a Sra
Friday, December 18, 2009 at 9:59am by SraJMcGin

chemistry 11
explain the process of a bohr model
Thursday, December 3, 2009 at 9:28pm by terrance

physics
Give an account of Neil's Bohr and it's limitation
Wednesday, November 30, 2011 at 1:42pm by Shamsuddeen

Physics
Whats the speed of an electron of Bohr's orbit K
Wednesday, January 23, 2013 at 4:58pm by Dyana

mojo
A hydrogen atom is in its elevnth excited state, n = 12. Using the Bohr model of hydrogen, find the linear momentum. You want to solve for the electron velocity and multiply that by the electrn mass. There are many ways to do this. One would be to get the radius of the orbit ...
Monday, August 20, 2007 at 11:41am by physics

Physics
Using the Bohr model of hydrogen, find the linear momentum, when n=3.
Saturday, May 14, 2011 at 3:54pm by Cerra

Physics
Who originally designed the planetary model of an atom? Bohr or Rutherford
Monday, December 17, 2012 at 10:14pm by Katie

chemistry
What is (delta E) for the traansition of an electron from n=9 to n=4 in a Bohr hydrogen atom? What is the frequency? Thank you!
Wednesday, March 12, 2014 at 9:17pm by abby

Science-Bohr Model 2
is there a pattern betweent he # of electrons in the outers shell of an element and its position along the row in the Perioidic table. whats the pattern? I know that there is a pattern, but I'm unable to explain. I looked at the first group of elements which included Hydrogen...
Tuesday, April 13, 2010 at 11:05pm by Sara

general science
Six orbits, but they aren't really moving in "rings". There are two "principal quantum numbers": two with quantum number 1 and four with quantum number 2. The Bohr-atom concept of electron "rings" or "shells" is still used in high school chem to explain the periodic table, but...
Thursday, January 29, 2009 at 4:36pm by drwls

Science-Bohr Model 2
I just answered that in my long answer to your last question. The empty spaces are the "holes" that the last shell has that hasn't been filled with electrons yet. Oxygen has six electrons in its outer shell so it has two empty holes in its outer shell. Therefore, its charge is...
Tuesday, April 13, 2010 at 10:32pm by Rhonda

physics
Evaluate the Rydberg constant R using Bohr theory and show that its value is R = 1.0974x10-1.
Tuesday, April 19, 2011 at 7:36am by qwer

Chemistry
HOw does the quantum mechanical orbital differ from a bohr orvit for an electron in a hydrogen atom?
Friday, November 8, 2013 at 9:48am by Grace Peterson

Science-Bohr Model 2
Rows go this way --------- Columns go this way | | | | | First row needs 1 shell Second row needs 2 shells. Third row needs 3 shells.
Tuesday, April 13, 2010 at 11:12pm by DrBob222

chem
calculate the wavelength of the green line in the visible spectrum of excited H atoms using Bohr Theory
Monday, November 7, 2011 at 5:10pm by kris

science
The wave theory of light was sufficient to explain phenomena such as refraction, reflection, scattering and polarization that were observed in the 19th century and earlier. The quantum behavior of light required more sophisticated observations that could not be made at that ...
Sunday, October 9, 2011 at 11:19pm by drwls

physics
(a) For BeIII with Z=4, use the Rydberg equation for the energy levels. They will be 4^2 = 16 times more widely separated than for hydrogen. E(m) = 13.58 eV*16/n^2 = 217.3 /m^2 eV For a transition from the ground state (m=1), 204 eV = 217.3/1 - 217.3/m^2 217.3/m^2 = 16.4 m = 4...
Monday, April 25, 2011 at 9:12am by drwls

11th grade
According to Bohr model, what determines the color of light emitted when an electron moved from one energy level to another?
Wednesday, August 25, 2010 at 6:24pm by christina

Chemistry
Between which two orbits of the Bohr hydrogen atom must an electron fall to produce light of wavelength 434.2 ?
Monday, September 27, 2010 at 8:33pm by Kyle

physics
Between which two orbits of the Bohr hydrogen atom must an electron fall to produce light of wavelength 434.2 ?
Monday, September 27, 2010 at 8:50pm by Kyle

Chemistry 151
Of the following transitions in the Bohr hydrogen atom, the ____ transition results in the emission of the highest-energy photon. a.n=1, n=6 b.n=6, n=1 c.n=6,n=3 d.n=3,n=6 e.n=1,n=4
Monday, November 8, 2010 at 6:49pm by Jessica

physics help!
Using the Bohr model, estimate the wavelength Ž of the KŠ characteristic X-ray for a metal an atom of which contains Z = 50 protons.
Sunday, April 22, 2012 at 5:32pm by jason

physics
Using the Bohr model, estimate the wavelength Ž of the KŠ characteristic X-ray for a metal an atom of which contains Z = 50 protons.
Sunday, April 22, 2012 at 8:44pm by jason

Chemistry
electromagnetic radiation of which frequency (in Hz) can be emitted by the hydrogen atom upon transition of an electron from n= 6 to n= 2 according to the bohr model.
Tuesday, May 8, 2012 at 12:54am by Winston

Chemistry
I didn't post the link. http://www.google.com/search?q=bohr+diagram&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
Thursday, July 8, 2010 at 6:57pm by DrBob222

Physics check
According to Bohr, an electron in an excited state could give off ..... a continuous cascade of photons for a high-level transition.
Friday, April 11, 2008 at 12:13am by Molly

Chemistry
Between which two orbits of the Bohr hydrogen atom must an electron fall to produce light of wavelength 434.2nm?
Tuesday, September 28, 2010 at 10:40pm by Christina

Physics please help!
Using the Bohr model, estimate the wavelength Ž of the KŠ characteristic X-ray for a metal an atom of which contains Z = 50 protons.
Saturday, April 21, 2012 at 12:43pm by linds

Physics please help!
Using the Bohr model, estimate the wavelength Ž of the KŠ characteristic X-ray for a metal an atom of which contains Z = 50 protons.
Sunday, April 22, 2012 at 2:05pm by linds

physics
It think that the question is flawed, as it confuses the idea of matter waves with the Bohr model of the atom. Bohr postulated that angular momentum is quantized in order to explain the discrete energy levels of atoms, see here: http://en.wikipedia.org/wiki/Bohr_model The idea...
Saturday, November 10, 2007 at 7:45am by Count Iblis

World History
The person who might be called the "father of the hydrogen bomb" is (a) Enrico Fermi (b) Robert Oppenheimer (c) Niels Bohr (d) Edward Teller
Saturday, February 2, 2013 at 10:59am by Beth

Chemistry
Distinguish between an absorption spectrum and an emission spectrum.with which did bohr work?
Friday, June 8, 2012 at 2:53pm by Yeneta

Chemistry
What the difference between an orbit in the Bohr model and an orbital in the quantum mechanical model of the atom?
Monday, October 8, 2007 at 7:22pm by Matthew

chemistry
According to the Bohr model of the hydrogen atom, how is hydrogen's bright line spectrum produced?
Tuesday, October 27, 2009 at 7:39pm by ryan

chemistry
1)why bohr orbit are called stationary orbit? 2)what do you mean by saying energy of electron is quantised?
Saturday, June 22, 2013 at 3:29am by vishal

chemistry
1)why bohr orbit are called stationary orbit? 2)what do you mean by saying energy of electron is quantised?
Saturday, June 22, 2013 at 3:29am by vishal

Chemistry
Calculate the energy change associated with the transition of an electron from the n=2 shell to the n=5 shell in a Bohr hydrogen atom.
Sunday, November 18, 2012 at 3:52pm by Daniel

Physics
Q: From the Bohr model of the Hydrogen atom, calculate the minimum amount of energy (in eV) an electron in the lowest orbital would need to free it from its proton (i.e., to ionize the atom). A: would I use the equation: En = - 13.6 / (n^2) ? If so, an an electron in its ...
Tuesday, May 26, 2009 at 3:53pm by Tracey

science - atoms and bonds
#1) Draw the following ions using a Bohr diagram: b)oxygen: i got [oxygen:2)8)]-2 (the -2 is an exponent) but the answer said [oxygen: 2)8)8)]-2...is this right? d)fluorine: i got [fluorine:2)8)]-1 and the book says [fluorine: 2)8)8)]-1..again, is the book making a mistake? #8...
Saturday, May 10, 2008 at 7:51pm by Sarah

physics
Which of the following was explained by the Bohr atom? 1. atomic spectra 2. the fact that most of the mass of an atom is in the nucleus 3. nuclear fission 4. the photoelectric effect
Wednesday, January 22, 2014 at 2:02pm by Andrew

science
The statement is not really true. It represents the old-fashioned and simplistic Bohr model of the atom. In the correct quantum mechanics theory of the atom, the electrons occupy a region around the nucleus like a cloud, but you cannot track exactly where they are. You can ...
Saturday, November 3, 2007 at 12:32am by drwls

Science-Bohr Model 2
To obtain a positive charge on the metal ion (which you have correct) doesn't the number of electrons DECREASE? by the number of + charges? Na has 11p, 11 e. Na^+ (+1 ion) has 11p, 10e The + charge went up (from zero to +1), the number of electrons went down (from 11 to 10 = 1...
Tuesday, April 13, 2010 at 10:23pm by DrBob222

science
Rutherford had no idea where the electrons were to be found. Thomson's model obviously was the pudding model and that was proved to be incorrect. Dalton didn't know about the nucleus OR electrons. That leaves just. The wave model can do this and the Bohr model can do this. I'm...
Friday, November 2, 2007 at 11:06pm by DrBob222

Physics
Suppose an electron was bound to a proton as in the hydrogen atom, but by the gravitational force rather than by the electric force. What would be the radius and energy of the first Bohr orbit?
Thursday, April 19, 2012 at 9:49pm by Katie

CHEMISTRY
6. The H atom and the Be3+ ion each have one electron. Does the Bohr model predict their spectra accurately? Would you expect their line spectra to be identical? Explain.
Sunday, February 9, 2014 at 10:12pm by Sajeth

PHYSICS
In the Bohr model of the hydrogen atom, the electron makes 6.00◊10^15 rev/sec around the nucleus.What is the average current at a point on the orbit of the electron?
Monday, April 11, 2011 at 7:46pm by Mattie

Chemistry
3. Using Bohrís model of the atom, calculate the energy required to move an electron from a ground state of n = 2 to an excited state of n = 3. Express your answer in both J/photon and kJ/mol.
Tuesday, April 23, 2013 at 10:26pm by Brad

chem
According to the Bohr theory of the hydrogen atom, what is the minimum energy (in J) needed to ionize a hydrogen atom from the n = 2 state?
Sunday, September 5, 2010 at 4:43pm by ryan

college chemistry
According to the Bohr theory of the hydrogen atom, what is the minimum energy (in J) needed to ionize a hydrogen atom from the n = 2 state?
Sunday, September 5, 2010 at 4:48pm by ryan

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