Home
Class 11
CHEMISTRY
Correct order of radius of the first orb...

Correct order of radius of the first orbit of `H, He^+, Li^(2 +), Be^(3 +)` is :

A

`H gt He^(+) gt Li^(2+) gt Be^(3+)`

B

`Be^(3+) gt Li^(2+) gt He^(+) gt H`

C

`He^(+) gt Be^(3+) gt Li^(2+) gt H`

D

`He^(+) gt H gt Li^(2+) gt Be^(3+)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    OP TANDON|Exercise Objective Question Level-B|51 Videos

  • ATOMIC STRUCTURE

    OP TANDON|Exercise Assertion Reason|22 Videos

  • ATOMIC STRUCTURE

    OP TANDON|Exercise Questions with single correct Answer|203 Videos

  • AROMATIC HYDROCARBONS (ARENES)

    OP TANDON|Exercise EXAMPLES|24 Videos

  • CHARACTERISATION OF ORGANIC COMPOUNDS

    OP TANDON|Exercise Passage-2|5 Videos

Similar Questions

Explore conceptually related problems

The ratio of radii of first orbits of H, He^(+) and Li^(2+) is:

The radius of the first Bohr orbit for H^(o+) is

The radius of the second Bohr orbit for Li^(2+) is :

Calculate ratio of radius of 1 ^(st) orbit of H atom to Li ^(+2) ion :

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

The radius of the first orbit of H-atom is r. then the radius of the first orbit of Li^(2+) will be:

If the radius of the first Bohr orbit of the H atom is r then for the Li^(2+) ion it will be:

The correct order of energy of 2s orbitals in H,Li,Na and K, is

The radius ratio of Bohr's first orbit of hydrogen like species He^(+),Li^(2+),Be^(3+) is

The ratio of the fifth orbit of He^("Theta") and Li^("Theta") will be

Knowledge Check

  • The ratio of radii of first orbits of H, He^(+) and Li^(2+) is:

    A
    `1:2:3`
    B
    `6:3:2`
    C
    `1:4:9`
    D
    `9:4:1`

  • The radius of the first Bohr orbit for H^(o+) is

    A
    `0.529 Å`
    B
    `0.264 Å`
    C
    `0.132 Å`
    D
    `0.176 Å`

  • The radius of the second Bohr orbit for Li^(2+) is :

    A
    `0.529xx(4)/(3)Å`
    B
    `0.529xx(2)/(3)Å`
    C
    `0.529xx(4)/(9)Å`
    D
    `0.529xx(2)/(3)Å`
    • OP TANDON-ATOMIC STRUCTURE -Set-2
    1. Correct order of radius of the first orbit of H, He^+, Li^(2 +), Be^(3...

      Text Solution

      |

    2. Which is the correct relationship? (a). E(1) of H=1//2E(2) of He^(+)=1...

      Text Solution

      |

    3. Which is correct for any kind of species?

      Text Solution

      |

    4. Number of visible lines when an electron returns from 5th orbit to gro...

      Text Solution

      |

    5. Quantum numbers l=2 and m=0 represent which orbital?

      Text Solution

      |

    6. If n and l are respectively the principal and azimuthal quantum number...

      Text Solution

      |

    7. Order of no. of revolutions/sec gamma(1),gamma(2),gamma(3) and gamma(4...

      Text Solution

      |

    8. Consider the following statements: (a) Electron density in the XY pl...

      Text Solution

      |

    9. The first emission line in the H-atom spectrum in the Balmer series ap...

      Text Solution

      |

    10. 1 BM is equal to:

      Text Solution

      |

    11. Radial probability distribution curve is shown for s-orbital. The curv...

      Text Solution

      |

    12. dz^(2) orbital has:

      Text Solution

      |

    13. When a light of frequency v(1) is incident on a metal surface the phot...

      Text Solution

      |

    14. Heisenberg's uncertainty principle is not valid for:

      Text Solution

      |

    15. Consider these electronic configurations for neutral atoms: (i) 1s^(...

      Text Solution

      |

    16. For the energy levels in an ato which one of the following statements ...

      Text Solution

      |

    17. Which of the following statements are correct for an electron that has...

      Text Solution

      |

    18. The angular momentum of electron can have the value (s) :

      Text Solution

      |

    19. Which of the following statements is/are wrong?

      Text Solution

      |

    20. Consider the following sets of quantum numbers. (i) {:(n,l,m,s,),(3,...

      Text Solution

      |