Home
Class 12
PHYSICS
Using known volues for hydrogen atom, ca...

Using known volues for hydrogen atom, calculate radius of third orbit for `Li^(+)`

Text Solution

Verified by Experts

As, Z=3 for `Li^(+2)`
Further we know that `r_(n)=(n^(2))/(Z) r_(1)`
Substituting , n=3, Z=3 and `r_(1)=0.529Å`
We, have `r_(3)=((3)^(2))/((3))(0.529)Å=1.578Å`
Promotional Banner

Topper's Solved these Questions

  • ATOMS

    DC PANDEY|Exercise Check point 12.1|14 Videos

  • ATOMS

    DC PANDEY|Exercise Check point 12.2|16 Videos

  • ALTERNATING CURRENT

    DC PANDEY|Exercise JEE MAIN|63 Videos

  • CAPACITORS

    DC PANDEY|Exercise OBJECTIVE_TYPE|1 Videos

Similar Questions

Explore conceptually related problems

(a) Find the radius of Li(++) ions in its grounds state assuming Bohr's model to be valid. (b) Find the maximum angular speed of the electron of a hydrogen atom in a stationary orbit. (c ) Average lifetime of a H atom excited to n=2 state is 10^(-8) sec. Find the number of revolutions made by the electron on the average before it jumps to the ground state. (d) Calculate the magnetic dipole moment corresponding to the motion of the electron in the ground state of a hydrogen atom. (e) Using the known values for hydrogen atom, calculate : (i) radius of third orbit for Li^(+2) (ii) speed of electron in fourth orbit for He^(+)

Using the known values for haydrogen atom, calculate . (a) radius of thirdj orbit for Li^(+2) . (b) speed of electron in fourth orbit for He^+ . (c ) angular momentum of electron in 3rd orbit of He^+.

Using known values for hydrogen atom, calculate speed of electron in fourth orbit of He^(+)

For hydrogen atom, radius of first Bohr orbit would be

If the radius of the second orbit of hydrogen atom is a Å then radius of the first orbit of Li^(2+) ion (in Å ) will be

Calculate the radius of the first Bohr orbit for the hydrogen atom Strategy: The radius of the first Bohr orbit for the H atom can be obtained directly from Eq.

DC PANDEY-ATOMS-MEDICAL ENTRANCES GALLERY
  1. Using known volues for hydrogen atom, calculate radius of third orbit ...

    Text Solution

    |

  2. Given the value of Rydberg constant is 10^(7)m^(-1), the waves number ...

    Text Solution

    |

  3. When an alpha particle of mass m moving with velocity v bombards on a ...

    Text Solution

    |

  4. Electrons with de- Broglie wavelength lambda fall on the target in an ...

    Text Solution

    |

  5. If an electron in a hydrogen atom jumps from the 3rd orbit to the 2nd ...

    Text Solution

    |

  6. Number of spectral lines in hydrogen atom is

    Text Solution

    |

  7. Minimum excitation potential of Bohr's first orbit hydrogen atom is

    Text Solution

    |

  8. If the frequency of K(alpha), K(beta) and L(alpha) , X-ray lines of a...

    Text Solution

    |

  9. The magntic moment (mu) of a revolving electron around the mucleaus v...

    Text Solution

    |

  10. The ionization enegry of the electron in the hydrogen atom in its grou...

    Text Solution

    |

  11. A photon of wavelength 300nm interacts with a stationary hydrogen atom...

    Text Solution

    |

  12. Consider 3rd orbit of He^(+) (Helium) using nonrelativistic approach t...

    Text Solution

    |

  13. What is the wavelength of ligth for the least energetic photon emitted...

    Text Solution

    |

  14. The wavelength of k(alpha) X- rays produced by an X - rays tube is 0....

    Text Solution

    |

  15. The de-Broglie wavelength of an electron in 4th orbit is (where, r=rad...

    Text Solution

    |

  16. The de-Broglie wavelength of an electron is the same as that of a 50 k...

    Text Solution

    |

  17. The ionisation energy of hydrogen is 13.6 eV . The energy of the photo...

    Text Solution

    |

  18. Hydrogen atom in ground state is excited by a monochromatic radiation ...

    Text Solution

    |

  19. If, an electron in hydrogen atom jumps from an orbit of lelvel n=3 to ...

    Text Solution

    |

  20. In the spectrum of hydrogen atom, the ratio of the longest wavelength ...

    Text Solution

    |

  21. The Rutherford charge experiment proves than an atom consists of

    Text Solution

    |