Limitations of Rutherford's model of the atom
The major limitation of Rutherford's model of the atom is that it does not explain the stability of the atom.This will become clear from the following discussion.In Rutherford's model of the atom,the negatively charged electrons are revolving around the positively charged nucleus in circular paths.Since the direction of motion of electrons moving in circular paths changes continuously,therefore,the motion of electrons moving around the nucleus is accelerated.Now,according to the electromagnetic theory of physics,the charged electrons undergoing accelerated motion around the nucleus will lose their energy continuously by radiation.The speed of electrons will,therefore,go on decreasing,they will be attracted more strongly by the oppositely charged nucleus, they will come more and more close to the nucleus and ultimately fall into the nucleus by taking a spiral path.This should make the atoms very unstable due to which the atoms should collapse quickly.This,however,does not happen.The electrons do not fall into the nucleus,atoms are very stable and do not collapse on their own.The Rutherfords' model,however,does not explain this stability of an atom.
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Structure of the Atom - Notes
1. Drawback of Rutherford’s Model of the Atom
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2. Rutherford’s Experiment - Discovery of Nucleus
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3. For the symbols H, D and T,tabulate three sub-atomic particles found in each of them.
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5. Structure of The Atom - Study Points
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10. Arrangement Of Electrons In The Atoms
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12. Limitations of Rutherford's model of the atom
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16. All about Names of the Chemical Elements
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17. How to learn naming Chemical Formulae?
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21. Comparison between Proton, Neutron and Electron
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22. Electronic Configurations of First 20 Elements
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26. Rules for writing of distribution of electrons in various shells for the first 18 elements
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36. The Physical Properties of the Isotopes of an Element are Different
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39. All the Isotopes of an Element Have Identical Chemical Properties
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42. Relationship Between Mass Number and Atomic Number
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44. Valaence Electrons (Or Valancy Electrons)
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45. Electronic Configurations of Noble Gases (or Inert Gases)
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48. Reason for the Fractional Atomic Masses of Elements
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49. Applications of Radioactive Isotopes
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