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what is the maximum number of emission lines when the exectied electron of a H atom in n= 6 drops to the ground state ?

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The number of emission lines obtained will be 15. These are due to the following transitions:
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ICSE-STRUCTURE OF ATOM-NCERT Textbook Exercises
  1. what is the wavelength of light emitted when the electron in a hydroge...

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  2. how much energy is required to ionise a H atom if the electron occupie...

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  3. what is the maximum number of emission lines when the exectied electro...

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  4. the energy associated with the first orbit in the hydrogen atom is -2....

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  5. calculate the wavenumber for the longest wavelength transition in the ...

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  6. what is the energy in joules, required to shift the electron of the hy...

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  7. The electron energy in hydrogen atom is given by E(n)=-(2.18 xx 10^(-1...

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  8. Calculate the wavelength of an electron moving with a velocity of 2.05...

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  9. the mass of an electron is 9.1 xx 10^(-31) kg . If its K.E. is 3.0xx...

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  10. Which of the following are isoelectronic species i.e, those having the...

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  11. (i) Write the electronic configurations of the following ions: (a) H...

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  12. What is the lowest value of n that allows g orbital to exist?

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  13. An electron is in one of the 3d-orbitals. What are the possible values...

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  14. an atom of an element contains 29 electrons and 35 neutrons . Dedue (i...

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  15. Give the number of electrons in the species H2^+. H2, and O(2)^+.

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  16. An tomic obital has n=3 , what are the possible values of l and m(l) ...

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  17. Using s,p,d notations, describe the orbital with the following quantum...

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  18. Explain giving reasons, which of the following sets of quantum numbers...

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  19. How many electrons in an atom may have the following quantum numbers? ...

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  20. Show that the circumference of the Bohr orbit for the hydrogen atom is...

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