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Compare all the proposed models of an at...

Compare all the proposed models of an atom given in this chapter.

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A comparison between the models of an atom proposed by J.J. Thomson's, Rutherford and Bohr is given below :
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The first model of an atom was given by

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Assertion: According to classical theory, the proposed path of an electron in Rutherford atom model will be parabolic. Reason: According to electromagnetic theory an accelerated particel continuosly emits radiation.

(A) according to electromagnetic theory an accelerated particle continuously emits radiation. (R) according to classical theory, the proposed path of an electron in rutherford atom model will be parabolic.

LAKHMIR SINGH & MANJIT KAUR-STRUCTURE OF ATOM-Exercise
  1. What are the limitations of Rutherford's model of the atom ?

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  2. Describe Bohr's model of the atom.

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  3. Compare all the proposed models of an atom given in this chapter.

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  4. Summarise the rules for writing of distribution of electrons in variou...

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  5. Define valency by taking examples of silicon and oxygen.

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  6. Explain with examples (i) Atomic number (ii) Mass number (iii) Isotope...

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  7. Na^(+) has completely filled K and L shells. Explain.

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  8. Bromine occurs in nature mainly in the form of two isotopes Br(35)^(79...

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  9. A sample of an element X contains two isotopes .(8)^(16)X and .(8)^(18...

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  10. If Z = 3, what would be the valency of the element? Also, name the ele...

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  11. Composition of the nuclei of two atomic species X and Y is given as un...

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  12. For the following statements, write T for true and F for false : (a)...

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  13. Rutherford's alpha particle scattering experiment led to the discovery...

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  14. Isotopes of an element have : (a) the same physical properties (b)...

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  15. Number of valence electrons in Cl^(– ) ion are:

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  16. Which one of the following is a correct electronic configuration of so...

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  17. Complete the following table :

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  18. Imran and Rohan are best friends. They study in different schools in S...

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  19. Ravi was performing some experiements related to the laws of chemical ...

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  20. The students of class IX have made placards showing the symbols of som...

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