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Give the number of electrons in species ...

Give the number of electrons in species `H _(2)^(+) , H _(2) O _(2) ^(+)`

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`(i) H _(2) ,` contains 2 electrons. So `H _(2) ^(+)` contains 1 electron.
(ii) ` H _(2) ,` contains 2 electrons.
(iii) `O _(2) ^(+) , O _(2) ` contains 16 electrons. So `O _(2) ^(+)` contains 15 electrons.
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OMEGA PUBLICATION-STRUCTURE OF ATOM -MULTIPLE CHOICE QUESTIONS (MCQ s)
  1. Give the number of electrons in species H (2)^(+) , H (2) O (2) ^(+)

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  2. Emission of beta -particle is equivatent to:

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  3. The mass of the neutron is of the order of

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  4. The number of electrons and neutrons of an element is 18 and 20 respec...

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  5. Which of the following has longest wavelength ?

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  6. The value of Planck's constant is

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  7. Which of the following expresson gives the de-Broglie relationship ?

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  8. The total number of orbitals possible for the quantum number n is

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  9. The four quantum numbers of the valence electron of potassium are

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  10. An electron has principal quantum number 3. The number of its (i) shel...

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  11. The correct set of quantum numbers for a 4d electron is

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  12. No two electrons in an atom will have all the four quantum numbers sam...

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  13. The correct order of increasing energy of atomic orbitals is

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  14. The energy of an electron in nth orbit of hydrogen atom is

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  15. The triad of nuclei that is isotonic is

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  16. Bohr's model can explain

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  17. If the value of l = 2, what will be the value of principal quantum num...

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  18. Rutherford's experiment on scattering of alpha particles showed for th...

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  19. 3d-orbitals have

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  20. Number of unpaired electrons in the electronic configuration 1s ^(2) ,...

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  21. The two electrons in an orbital have different

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