Search: Science-Bohr Model 2

Number of results: 50,619

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

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

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

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

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

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

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
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

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

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
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
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

physics
1.Distinguish between atomic physics and nuclear physics? 2.Briefly describe the Bohr model of the atom. What is Bohr’s 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

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
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 ...
Friday, November 2, 2007 at 11:06pm by DrBob222

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

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

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

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

Physics
b. is correct, both in the classical model, and also in quantum mechanical model, an attractve force towrds the nucleus ios assumed. Regarding (d): Coulomb's law says nothing about velocity. In the Bohr model of the hydrogen atom, some orbits have constant velocity, and ...
Friday, February 5, 2010 at 12:08am by drwls

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

Physics
Could someone help me with these questions. . . please 1. How does Rutherford’s model of the atom account for the back – 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 ...
Monday, November 12, 2007 at 2:40pm by Mike

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

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 ...
Monday, November 5, 2007 at 7:00pm by Soly

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

chemistry
1) what flaws exsit in Dalton's model of the atom? 2) what flaws exist in Thompson's plum pudding model of the atom? 3) what flaws exist in Rutherford's model of the atom? 4) what flaws in Bohr's model of the atom? 5) do any flaws exist in the modern quantum ...
Wednesday, November 14, 2007 at 8:01pm by Anonymous

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

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

CHEMISTRY
PLEASE HELP I REALLY DO NOT UNDERSTAND THIS YOU DONT REALLY HAVE TO ANSWER THE QUESTIONS BUT AT LEAST JSUT A LITTLE HINT THATS ALL PLEASE AND I HAVE A QUIZ ON THIS TOMORROW MY TEACHER REALLY CANNOT TEACH 1) what flaws exsit in Dalton's model of the atom? 2) what flaws ...
Wednesday, November 14, 2007 at 9:12pm by Anonymous

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

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

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

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

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

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

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

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

Chemistry
The original Bohr orbits were circular. Sommerfeld added ellipticity and both of these were modeled after the solar system of the sun and planets. The quantum mechanical model has no structure in the sense that it behaves as the solar system or any other model with which we ...
Monday, October 8, 2007 at 7:22pm by DrBob222

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 ...
Tuesday, April 13, 2010 at 11:12pm by Sara

phyical science
Bohr's model has the electrons in defined orbits see http://en.wikipedia.org/wiki/Bohr_model_of_the_atom The modern model presents the model in terms of the probability that an electron will be at a particular location. see http://en.wikipedia.org/wiki/Quantum_mechanics
Wednesday, October 15, 2008 at 10:17pm by Dr Russ

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
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

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

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

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

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

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

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

Science
Do you mean a physical model like a "scale model" or a computer model that predicts results?
Monday, August 22, 2011 at 11:53pm by drwls

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 11
There is no process of a Bohr model as it is a model of the atom. see http://en.wikipedia.org/wiki/Bohr_model
Thursday, December 3, 2009 at 9:28pm by Dr Russ

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-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 ...
Tuesday, April 13, 2010 at 11:05pm by Sara

Political Science
Is the rational-comprehensive model or the incremental model best used to describe policymaking in the United States? Provide examples to support your model choice
Saturday, February 18, 2012 at 6:31am by unknown

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...
Tuesday, April 13, 2010 at 10:32pm by Rhonda

HUMAN ORGANIZATON BEHAVIOR.... PLEASE HELP
in Autocratic model, Custodial model, Supportive model, Collegial model, System model
Sunday, October 16, 2011 at 8:01pm by opu

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

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

Physical Science
I need some help. I have tried working this problem and can't get it. A class is building a scale model of the planets based on the model of Mercury having a radius 0.5cm. What is the diameter of Saturn for this model?
Sunday, April 8, 2012 at 2:26am by mel

Chemistry
3. Using Bohr’s 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

Chemistry Help!!!!
for each of the following pairs of elements, give the correct molecular formula, explain how you arrived at this answer( you may use the Bohr model notation, or the orbital model notation, or explain linguistically) and note whether the bonding is covalent or ionic. ( I tried ...
Monday, March 26, 2012 at 4:51pm by John

science
describe the difference between a ball-and-stck model and a space-filling model of a compound ? Vanessa--Have you seen a ball-and-stick model and a space-filling model? If so you will know how to answer this. dont give me stupid answers i can on for help not bs
Sunday, March 4, 2007 at 9:46pm by vanessa

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

Physic please check
Consider two different hydrogen atoms. The electron in each atom is in an excited state. (a) Is it possible for the electrons to have different energies but the same orbital angular momentum L, according to the Bohr model? Justify. No.Electrons within the same obital angular ...
Friday, December 14, 2007 at 1:09am by Mary

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

Statistics
OK, SST makes sense, but I can't see how to derive your SSM or SSE formulas: I get this: SSM = ∑((MODEL - MEAN)^2) = ∑(MODEL^2 - 2 * MODEL * MEAN + MEAN^2) = ∑(MODEL^2) - 2 * MEAN * SIGMA(MODEL) + N * MEAN^2 SSE = ∑((X - MODEL)^2...
Tuesday, August 28, 2007 at 6:18pm by statstudent

physics
In the Bohr model of the hydrogen atom, the speed of the electron is approximately 1.97 × 106 m/s. Find the central force acting on the electron as it revolves in a circular orbit of radius 4.72 × 10−11 m. Answer in units of N.
Wednesday, May 11, 2011 at 4:42pm by go

Chemistry
According to the Bohr model, what determines the color of light emitted when an electron moves from one energy level to another? The wavelength of the photon emitted depends on the difference of the two levels the electron moved from/to.
Thursday, December 7, 2006 at 9:23am by Tomaya

Physical Science
I need some help. I have tried working this problem and can't get it. A scale model of the solar system is being constructed where 40cm of the model represents 0.5 AU of actual distance. What is the model dimension, in meters, for the distance of Jupiter from the sun?
Sunday, April 8, 2012 at 2:22am by mel

11th grade
In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.17 x 10^6 m/s. find the central force acting on the electron as it revolves in a circular orbit of radius 5.42 x 10^-11m.
Sunday, December 5, 2010 at 3:33pm by Julia

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

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

physical science
Which one of these statements is true about Copernicus? a. His model included planetary orbits that were circular. b. He believed that Ptolemy's ideas about the shape of orbits were correct c. His model could not account for retrograde motion of Mars. d. His model of the ...
Thursday, December 15, 2011 at 8:59pm by Fonda

statistics
I'm trying to work through the proof for SST = SSM + SSE MEAN = ∑(X)/N SST = ∑((x - MEAN)^2) = ∑(x^2 - 2 * x1 * MEAN + MEAN^2) = ∑(x^2) - 2 * MEAN * ∑(x) + N * MEAN^2 = ∑(x^2) - 2 * ∑(x)^2/N + &#8721...
Wednesday, August 29, 2007 at 12:15pm by statstudent

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

Science
What was the main difference between Dalton's model of the atom and the model that was first developed by the Greeks?
Thursday, March 14, 2013 at 2:04pm by Kim

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...
Tuesday, April 13, 2010 at 10:23pm by DrBob222

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
i have to make a model on global warming(a 3d model)can u plzz...give some ideas.
Friday, June 13, 2008 at 1:59am by shweta

Physical Science
A ball and stick model could represent many many different things. The answer to your question depends upon what you want to model.
Tuesday, January 3, 2012 at 7:52pm by DrBob222

physics
In Bohr's model of the hydrogen atom, the radius of an orbit a. is proportional to n2. b. is smallest for the highest energy state. c. increases when a photon of light is emitted from an excited atom. d. can have any value that is larger than the ground-state radius. e. ...
Saturday, August 15, 2009 at 12:46pm by jeff

Chemistry
Calculate the energy (in kJ/mol) required to remove the electron in the ground state for each of the following one-electron species using the Bohr model. (a) He+ kJ/mol (b) Li2+ kJ/mol
Tuesday, January 24, 2012 at 6:18pm by Sarah

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

chemistry
I and III remain correct in quantum throey. Orbits are not circular, however. Electrons really do not follow orbits at all. The orbits with the highest angular momenta are the least circle-like in their wave function symmetry. For a while, the Bohr model was modified to ...
Wednesday, December 30, 2009 at 3:02pm by drwls

Algebra
Company produces three models of speakers. models A,B,and C and can deliver them by truck, van and car. Truck holds 2 boxes of model A, 2 of model B and 3 of model C. Van holds 3 boxes of model A, 4 boxes of model B, and 2 boxes of model C The car holds 3 boxes of model A 5 ...
Sunday, December 13, 2009 at 6:38am by mike

atoms
If i was to draw a diagram of a hydrogenatom with one electron and its many spectral lines would i need to draw the BOhr model with the nucleus in the middle and 3 outer rings or have i lost the plot That is one way. Actually, there are an infinite number of stable orbits that...
Wednesday, February 14, 2007 at 6:47am by bex

algebra II,math
this is another from a different section can you show me how to solve it. An electronics company produces three models of stereo speakers, models A, B, and C, and can deliver them by truck, van, or station wagon. A truck holds 2 boxes of model A, 2 of model B, and 3 of model C...
Tuesday, May 29, 2007 at 1:31pm by mathstudent05

math
change both measurements to the same unit of measure,and find the scale factor. 1. 4in. model of a 6ft.cabinet 2. 4cm. model of a 2m. door. 3. 12ft. model of a 100yd. playground 4. 20m. model of a 3km. street.
Tuesday, December 1, 2009 at 9:33pm by citaly

math
Toby is making a scale model of the battlefield at Fredericksburg. The area he wants to model measures about 11 mi by 7.5mi. He plans to put the model on a 3.25 ft by 3.25ft square table. On each side of the model he wants to leave at least 3 inches between the model and the ...
Friday, November 30, 2012 at 5:39am by greg

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

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