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The negatively charged particle discover...

The negatively charged particle discovered by . J. Thomson is called ..... .
(proton, neutron. electron)

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The correct Answer is:
electron
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KUMAR PRAKASHAN-STRUCTURE OF THE ATOM -QUESTIONS AND ANSWERS
  1. There are ..... electrons in the outermost orbit of chlorine atom.

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  2. One of the indications that atoms are not indivisible comes from the s...

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  3. The negatively charged particle discovered by . J. Thomson is called ...

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  4. Canal rays possess ........ electrical charge. (postve, negative, ...

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  5. The mass of proton is approximately ...... times as that of the electr...

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  6. In Rutherford's alpha- particle scatteringexperiment, one out of every...

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  7. The radius of the atom is about ....... Times more than the radius of ...

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  8. In an orbit 32 electrons can be accomodated, then it will be ....... O...

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  9. Scientist ...... discovered subatomic particle which had no charge. ...

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  10. The maximum number of electorns present in the orbit is respresented b...

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  11. The valencies of magnesium and aluminium are ......... Respectively. ...

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  12. Hydrogen has ...... Isotopes. Two, three, four)

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  13. Protons are in the interior part of the atom.

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  14. alpha-particles are doubly-charged moving helium ion.

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  15. There is very negliglble contribution of electrons in deciding the ato...

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  16. The valenctes of hydrogen. sodtum and Iithium are same.

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  17. The chemical properties of isotopes are similar.

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  18. Total number of nucleons is the same in the atoms of isobar.

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  19. The average atomic mass of chlorine is 35.5 u.

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  20. What are the limitations of J. J. Thomson's model of the atom?

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