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| This educational physics (atomic) animation with audio shows Bohr's creation of the atomic model in a systematic manner. It starts from the mystery of spectral lines and ends with the explanation of hydrogen spectra, an animated glossary and a quiz on Bohr's model. This animated 1.5 hour Bohr's atomic model covers in detail the endeavor of the scientists to see the unseen and is meant for high school and college atomic physics classes.
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This animation has audio.
Category : Physics Atomic
Type : Animation with sound
Animation Type : Advanced
Total animation length: 1 hr 30 minutes
Refer details section for information.
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The animation answers the questions like
What is the radius of orbits in which electrons did not radiate?
What was the energy possessed by the electron in these orbits? |
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The physics animation exhibits the path-breaking concepts of Bohr through comparison between orbital, energy well and energy level model and calculations for speed, energy, radius and their correlation. |
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Bohr's postulates, explanation of hydrogen spectra and its line series are elaborated also the shortcomings of the model are completely covered. Our animated mascot, professor Stanley quizzes you on the concepts. An animated glossary clarifies the terms like Rydberg's constant, ionization energy, quantum well etc. |
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This Bohr's atomic theory animation is directed towards high school / university students and teachers. It contains animation supported by audio and is directed towards unfolding the efforts of Bohr to apply quantum principles to Rutherford's mechanistic planetary model. Derivations, formulas, hints, explanations and glossary are provided for better grasp of the concepts. A quiz checks the understanding. Topics covered are:
Journey into the atom - Bohr strives to save Rutherford's model :
Mystery of missing spectral lines from emission and absorption spectra, Rutherford's model, Bohr's postulates.
Visual comparison of Bohr's and Rutherford's model :
Columbic forces balance mechanical rotation, understanding spectra, continuous and discrete spectrum, why did the electrons not fall into the nucleus? Ramp and steps and unequal steps analogy.
Which orbits were considered to be stationary by Bohr? :
Quantifying of angular momentum
Derivation of L= nh/2pi :
DeBroglie's equation
How did he bring the above restriction on the circular orbits or stationary states? Planck's constant 'h' and Einstein's equation E = hf . Calculation of photon's wavelength. stationary states
Balmer's formula
Quantum theory formulated by Max Planck and established by Einstein : A short explanation
Significance of "h"
How L = mvr ?
More on quantum : Quantum world and laws are different from real world and laws.
Concept and Derivation of radius of hydrogen atom : Electrons can only exist at quantized distance from hydrogen nucleus.
Determining the total energy possessed by an electron
Calculation of orbital speed
Calculation of energy
Correlation between n, energy level and orbital radius
Bohr’s postulates
Explanation of hydrogen spectrum in detail : Why spectral lines are produced? Correlation between orbital and energy level model .Understanding absorption and emission spectra of hydrogen. Intensity of spectral line.
Explanation of Lyman, Balmer, Paschen, Pfund, Brackett, Humphreys spectral line series
What if the atom is subjected to continuous intake of energy?
Summing up
Shortcomings of Bohr's Model : Zeeman, Stark effect, discrete energy levels, larger atoms, position momentum.
References : See below
Quiz
Reference cover the terms in details:
Ångström
Electron Volt
Formula for Energy,
Radius and
Wavelength
Hydrogen Energy
Levels
Ionization Energy
Kilo joules per mole
Nanometer
Quantum Well
Rydberg's constant
for Hydrogen
Series derived from
Rydberg's formula
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very good by Gianluca Lapini |
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| Q1: |
what is the cathode rays? and what is rays divided like white photon is make from 7 color photon ?????????/ |
uttam kalariya |
11/7/2014 |
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| Q2: |
bohr atomic modle |
abubakar mughal |
22/12/2013 |
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| Q3: |
can you provide me with links to beggginer chemist at university level |
jared |
3/11/2013 |
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| Q4: |
What is the relationship between the Bohr Radius and the Golden Proportion at the subatomic level? Can this be represented diagramatically? |
Prof Ninian Peckitt |
9/6/2013 |
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| Q5: |
XAMOSH |
HALOFARHAD |
10/10/2012 |
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| Q6: |
what is name |
SHIAKHA |
31/3/2012 |
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| Q7: |
plz plz tell me about orbits and orbitals difference? |
maryyum |
13/9/2011 |
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| Q8: |
why protons donot repel eachother? |
vidushi |
21/8/2011 |
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| Q9: |
write short notes on bohar's atomic model ? |
abhishek |
1/2/2011 |
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| Q10: |
what are the limtations of each atamic models? |
aga |
14/10/2010 |
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| Q11: |
WHAT ARE THE LIMITATIONS OF BOHRS ATOMIC MODEL |
SACHIN |
18/3/2010 |
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| Q12: |
importance,uses and application of atomic energy level. |
erewa |
9/12/2008 |
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| Q13: |
I want a complete detail of Rutherford's alpha scattering experiment with animation. |
RAMBO |
4/11/2008 |
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| Q14: |
How does nitrogen show many oxidation states? |
Anne George |
22/4/2008 |
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| Q15: |
Do I can download free version the Atomic Model flash Animation? |
ngadimin/Fhysics Faculty of Syiah Kuala Universit |
15/9/2007 |
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No, It is only available for viewing online |
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| Q16: |
why does element give particular colour of the flame |
pratibha bhalekar |
1/5/2007 |
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Elements have their distinct emission spectra produced by their excited electrons emitting electromagnetic radiation while going down the energy level to ground state. The EM radiations are different for each element based on its atomic configuration. Those radiations in visible region are seen as colors by us. Thus, when the elements are heated in a flame their electrons receive energy and get excited and the EM radiations so produced give color to flame. |
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| Q17: |
how i can make modules as your modules ? |
effat nashat |
26/3/2007 |
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To make an animation first choose appropriate software adobe flash, director, corel rave and from many others. We prefer flash. Choose a topic and collect data for that topic from various sources like web, books, CDs, Newspapers, magazines etc. Cross check for validity and veracity. Compile the data so that the flow is smooth and proper, we do it as per question and answer, then animate it, introduce interactivity and finally add sound. Test it for errors and jerks. Finally publish it. |
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| Q18: |
Why did they use a gold foil? |
nonhlanhla |
12/3/2007 |
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Mass of gold atoms was more than that of alpha particles and gold is very malleable and could be easily hammered into a thin foil |
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