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How many proton(s)& electron(s) are in H...

How many proton(s)& electron(s) are in `H^(-)` ion?

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One proton and two electrons.
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CHHAYA PUBLICATION-STRUCTURE OF ATOM-EXERCISE (VERY SHORT TYPE QUESTION)
  1. Mention the symbol and the mass number of an element which contains tw...

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  2. Why is the spectrum of H^(+) not obtained?

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  3. How many proton(s)& electron(s) are in H^(-) ion?

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  4. From which principal energy state, the excited electron comes down the...

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  5. How many neutrons are present in ""(20)^(40)Ca^(2+) ion?

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  6. What is the nature of hydrogen spectra?

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  7. Mention one ion that obeys Bohr's theory.

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  8. Write the relationship between wavelength and momentum of a moving mic...

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  9. Indicate the limitation of de Broglie equation.

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  10. Is the uncertainty principle applicable to stationary electron?

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  11. Energy associated with which of the following waves is not quantised? ...

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  12. What is an orbital according to quantum mechanical model?

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  13. How do you specify an electron in an atom?

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  14. What is the maximum number of electrons in the 'n' th orbit?

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  15. Which is the lowest energy level containing 'g' sub-shell?

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  16. Identify the orbital with n=4 and l=0.

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  17. Which 'd'-orbital does not contain four lobes?

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  18. Which quantum number describes the shape of an electron?

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  19. Write the electronic configuration of Mn^(2+) ion.

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  20. What is the total number of nodes in 3d-orbital?

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