Home
Class 11
CHEMISTRY
The value of the energy for the first ex...

The value of the energy for the first excited state of hydrogen will be

A

`-13.6 eV`

B

`-3.40 eV`

C

`-1.51 eV`

D

`-0.85 eV`

Text Solution

Verified by Experts

The correct Answer is:
B
First excited means n = 2
`E_(2) = -(13.6)/(2^(2)) eV =-3.4 eV`.
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    DINESH PUBLICATION|Exercise Selected Straight Objective Type MCQs|70 Videos

  • ATOMIC STRUCTURE

    DINESH PUBLICATION|Exercise Compre.|17 Videos

  • ATOMIC STRUCTURE

    DINESH PUBLICATION|Exercise Ultimate Preparatory Package|15 Videos

  • APPENDIX

    DINESH PUBLICATION|Exercise Completion Reactions|15 Videos

  • BIOMOLECULES

    DINESH PUBLICATION|Exercise Reason|1 Videos

Similar Questions

Explore conceptually related problems

The total energy of the electron in the first excited state of hydrogen is -3.4 eV . What is the kinetic energy of the electron in this state?

The total energy of electron in the first excited state of hydrogen is about -3.4eV. Find potential energy of electron in this state.

The total energy of an electron in the first excited state of hydrogen atom is about -3.4eV . Its kinetic energy in this state is

The total energy of an electron in the first excited state of hydrogen is about -3.4 eV . Its kinetic energy in this state is:

Calculate the orbital period of the electron in the first excited state of hydrogen atom.

Potential energy is -27.2eV in second orbit of He; then calculate double of total energy in first excited state of hydrogen atom :-

DINESH PUBLICATION-ATOMIC STRUCTURE-Revision Questions
  1. Which of the following is not isoelectronic ?

    Text Solution

    |

  2. As the nuclear charge increases from neon to calcium, the orbital ener...

    Text Solution

    |

  3. The value of the energy for the first excited state of hydrogen will b...

    Text Solution

    |

  4. In hydrogen atom, energy of first excited state is - 3.4 eV. Then, KE...

    Text Solution

    |

  5. The energy of the first electron in helium will be

    Text Solution

    |

  6. In a hydrogen atom, if energy atom, if energy of an electron in group ...

    Text Solution

    |

  7. In the Bohr's orbit, what is the ratio of total kinetic energy and tot...

    Text Solution

    |

  8. The configuration 1s^(2) 2s^(2) 2p^(5) 3s^(1) shows

    Text Solution

    |

  9. The ratio between kinetic enegry and total enegry of the electrons of ...

    Text Solution

    |

  10. The value of Planck's constant is 6.63 xx 10^(-34)Js. The velocity of ...

    Text Solution

    |

  11. In Bohr series of lines of hydrogen spectrum, third line from the red ...

    Text Solution

    |

  12. The de-Broglie wavelength of a tennis ball mass 60 g moving with a ve...

    Text Solution

    |

  13. The orbital angular momentum for an electron revolving in an orbit ...

    Text Solution

    |

  14. The number of d-electrons retained in Fe^(2+) (At. no. of Fe = 26) ion...

    Text Solution

    |

  15. The angular momentum of electron in nth orbit is given by

    Text Solution

    |

  16. Configuration of 5p^(1) is

    Text Solution

    |

  17. Number of orbitals present in 3rd shell is

    Text Solution

    |

  18. RUTHERFORD'S NUCLEAR MODEL OF ATOM

    Text Solution

    |

  19. Rutherford's model suggests the existence of

    Text Solution

    |

  20. The total number of electrons present in all s orbitals, all the p orb...

    Text Solution

    |