Home
Class 11
CHEMISTRY
The spectrum of He is expected to be sim...

The spectrum of `He` is expected to be similar to that of

A

`H`

B

`Li^(+)`

C

`Na`

D

`He^(+)`

Text Solution

Verified by Experts

The correct Answer is:
B

The ground state electronic configuration of `He (Z = 2)`is `1s^(2).Li^(o+)` also has identicla configuration in the ground state. Thus, both produce similar spectrum.
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    R SHARMA|Exercise Level-IV|4 Videos
  • STATES OF MATTER

    R SHARMA|Exercise ARCHIVES|41 Videos
  • THE P BLOCK ELEMENTS

    R SHARMA|Exercise Archives|40 Videos

Similar Questions

Explore conceptually related problems

Due to lanthanoid contraction which of the following properties is not expected to be similar in the sme vertical columns of second and third row transition elements ?

Spectrum of Li^(2+) is similar to that of

Which pair of compounds is expected to show similar colour in aqueous medium?

A ten year old boy had chicken pox. He is not expected to have the same disease for the rest of his life. Why?

The line spectrum of He^(+) ion will resemble that of :

R SHARMA-STRUCTURE OF ATOM-ARCHIVES
  1. The atomic number of an element is 35. What is the total number of ele...

    Text Solution

    |

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

    Text Solution

    |

  3. Rutherford's model suggests the existence of

    Text Solution

    |

  4. The orbit in Rutherfprd's model is

    Text Solution

    |

  5. The number of orbitals present in the 3rd shell is

    Text Solution

    |

  6. Configuration of 5p^(1) is

    Text Solution

    |

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

    Text Solution

    |

  8. Which of the following expression respresents the electron probability...

    Text Solution

    |

  9. Outer electronic configuration of K, Cu, and Cr are, respectively,

    Text Solution

    |

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

    Text Solution

    |

  11. The configuration 1s^(2)2s^(2)2p^(5)3s^(1) shown

    Text Solution

    |

  12. In a hydorgen atom, enegry of the first excited state is -3.4 eV. Find...

    Text Solution

    |

  13. As the nuclear charge increases form neon to calcium, the orbital ener...

    Text Solution

    |

  14. The spectrum of He is expected to be similar to that of

    Text Solution

    |

  15. Which of the following element's outermost orbit's last electron has m...

    Text Solution

    |

  16. Rutherford's alphaparticle dispersion experiment concludes that

    Text Solution

    |

  17. An element M has an atomic mass 19 and atomic number 9. Its ion is rep...

    Text Solution

    |

  18. Which one of the following pairs of ions have the same electronic conf...

    Text Solution

    |

  19. In the ground state, an element has 13 electrons in its M shell. The e...

    Text Solution

    |

  20. For how many orbitals are the quantum numbers n = 3, l = 2, m = +2 pos...

    Text Solution

    |