Home
Class 11
CHEMISTRY
The ionisation energy of a H-like atom i...

The ionisation energy of a H-like atom is `4R_(h)`
a. Calculate the wavelength of radiation emitted when an electron jumps from the first excited state to the ground state
b. What is the radius of first orbit of this atom?
Given `1R_h= 2.18 xx 10^(-19) J`

Text Solution

Verified by Experts

`(i) 303.89 Å` (ii) `2.645 xx 10^(-9) cm,`
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    P BAHADUR|Exercise Exercise 8|19 Videos

  • CHEMICAL BONDING

    P BAHADUR|Exercise Exercise 7|11 Videos

Similar Questions

Explore conceptually related problems

The ionisation of a H-like atom is 4R_(h) a. Calculate the wavelength radiation when an electron jumps from the first excited state to the ground state b. What is the radius of first orbit of this atom ? ?Given 1 Rh= 2.18 xx 10^(-18) J

The energy needed to detach the electron of a hydrogen like ion in ground state is a system(a) what is the wavelength of the radiation emitted when the electron jumps from the first excited state to the ground state? (b) What is the radius of the orbit for this atom?

The wavelength of the radiation emitted when an electron falls from Bohr 's orbit 4 to 2 in H atom is

The ionisation energy of hydrogen is 13.6 eV . The energy of the photon released when an electron jumps from the first excited state (n=2) to the ground state of hydrogen atom is

(a) (i) Find the wavelength of the radiation required to excite thye elctron in Li(++) from the first to the third Bohr orbit. (ii) How many spectal lines are observed in the emission spectrum of the above excited system ? (b) The energy needed to detach the electron of a hydrogen-like ion in ground state in 4 rydberg. (i) What is the wavelength of the radiation emitted when the electron jumps from the first excited state ot the ground state ? (ii) What is the radius of first orbit ? (c ) A hydrogen sample is prepared in a particular excited state A. Photons of energy 2.55 eV get absorbed into the sample to take some electrons to a further excited state B. Find the quantum number of the A and B. (d) A hydrogen atom in a state having a binding energy of 0.85 eV makes transition to a state with excitation energy 10.2 eV. (i) Identify the quantum number n of the upper and the lower energy states. Find lambda .

H-like atom with ionization energy of 9R. Find the wavelength of light emitted (in nm) when electron jumps from second excited state to ground state. (R is Rydberg constant)

Calculate the wavelength of the radiations in nanometers emitted when an electron in hydrogen atom jumps from third orbit to the ground state. (R_(H)=109677 cm^(-1))

P BAHADUR-ATOMIC STRUCTURE-Exercise 9
  1. Calculate the wavelength of first line of Lyman series of ten times i...

    Text Solution

    |

  2. What is the difference in energy between 1s and 2p-orbitals in the hy...

    Text Solution

    |

  3. The ionisation energy of a H-like atom is 4R(h) a. Calculate the wav...

    Text Solution

    |

  4. Calculate frequency, energy and wavelength of the radiation correspo...

    Text Solution

    |

  5. The IE(1) of H is 13.6 eV. It is exposed to electromagnetic waves of 1...

    Text Solution

    |

  6. 1.8 g hydrogen atoms are excited by a radiation. The study of species ...

    Text Solution

    |

  7. Consider three electron jumps described below for the hydrogen atom ...

    Text Solution

    |

  8. A series of lines in the spectrum of atomic H lies at wavelengths 656...

    Text Solution

    |

  9. A hydrogen-like atom (atomic number Z) is in a higher excited state of...

    Text Solution

    |

  10. Calculate the Rydberg constant RH if He^+ ions are known to have the ...

    Text Solution

    |

  11. Consider the follwoing two elerctronic transition possibilites in a hy...

    Text Solution

    |

  12. The angular momentum of electron in a Bohr's orbit of H atom is 4....

    Text Solution

    |

  13. Find the quantum number n corresponding to the excited state of He^(o...

    Text Solution

    |

  14. Calculate the angular frequency of an electron occupying the second ...

    Text Solution

    |

  15. Two hydrogen atom collide Collide head on and end up with zero kin...

    Text Solution

    |

  16. The kinetic energy of an electron in H-like atom is 6.04 eV. Find t...

    Text Solution

    |

  17. How many spectral linears are emitted by atomic hydrgen excited to the...

    Text Solution

    |

  18. The hydrogen atom in the ground state is excited by mass of monchromat...

    Text Solution

    |

  19. A single electron orbits around a stationary nucleus of charge + Ze wh...

    Text Solution

    |

  20. Determine de-Broglie wavelength of an electron having kinetic energy o...

    Text Solution

    |