Home
Class 11
CHEMISTRY
How many lines in the spectrum will be o...

How many lines in the spectrum will be observed when electrons returns from seventh shell to second shell.

Text Solution

Verified by Experts

`sum(n_2 - n_1)= sum7-2 = sum5`
`= 5+4+3+2+1=15`
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    NARAYNA|Exercise EXERCISE (CHECK YOUR GRASP)|15 Videos

  • STRUCTURE OF ATOM

    NARAYNA|Exercise EVALUATE YOUR SELF - 1|3 Videos

  • STATES OF MATTER

    NARAYNA|Exercise A & R TYPE QUESTIONS|16 Videos

  • THERMODYNAMICS

    NARAYNA|Exercise Assertion- Reason|5 Videos

Similar Questions

Explore conceptually related problems

The observed wavelegnth in the line spectrum of hydrogen atom were first expressed in terms of a series by Johann Jakob Balmer, a Swiss teacher. Balmer's emipirical formula is (1)/(lamda)=R_(H)[(1)/(2^(2))-(1)/(n^(2))]n=3,4,5 . . . R_(H)=109678cm^(-1) is the Rydberg constant. Niels Bohr derived this expression theoretically in 1913. The formula is generalised to any one electron atom/ion.Howmany lines in the spectrum will be observed when electrons return from 7th shell to 2nd shell?

How many Balmer spectral lines will be obtained when the excited electrons return from 8th shell to 2nd shell?

When an electron jumps from L to K shell -

Number of visible lines when an electron returns from 5th orbit to ground state in H spectrum :

The change in velocity when hydrogen electron jumps from K shell to L shell is

NARAYNA-STRUCTURE OF ATOM-EXERCISE - IV EXEMPLAR PROBLEMS
  1. How many lines in the spectrum will be observed when electrons returns...

    Text Solution

    |

  2. Which of the following conclusions couldnot be derived from Rutehrford...

    Text Solution

    |

  3. Which of the following options does not represent ground state electr...

    Text Solution

    |

  4. Which of the following statement is not correct about the charactersti...

    Text Solution

    |

  5. Which of the following statements about the electron is incorrect?

    Text Solution

    |

  6. Which of the following properties of atom could be explained correctl...

    Text Solution

    |

  7. Two atoms are said to be isobars is

    Text Solution

    |

  8. The number of radial nodes for 3p orbital is......

    Text Solution

    |

  9. Number of angular nodes for 4d orbtial is.........

    Text Solution

    |

  10. Which of the following is responsible to rule out the existence of def...

    Text Solution

    |

  11. Total number of orbitals associated with thrid shell will be.....

    Text Solution

    |

  12. Orbital angular momentum depends on .........

    Text Solution

    |

  13. Isodiapheres are the atoms of two elements having same values of:

    Text Solution

    |

  14. The pair of ions having same electronic configuration is.

    Text Solution

    |

  15. For the electrons of oxygen atom, which of the following statemetns c...

    Text Solution

    |

  16. It travelling at same speeds, whichof the following mater waves have t...

    Text Solution

    |

  17. Identify the pairs which are not of isotopes? (1) ""(6)^(12) X,(3)^(...

    Text Solution

    |

  18. Match species given in Column I with the electronic configuration give...

    Text Solution

    |

  19. State whether the following sets of quantum numbers can be allowed or...

    Text Solution

    |

  20. Which of the following pair would have larger size? a.K or K^(o+) , ...

    Text Solution

    |

  21. The principal quantum number determines ……….of the atom

    Text Solution

    |