Home
Class 12
CHEMISTRY
The Lanthanides and Actinides are placed...

The Lanthanides and Actinides are placed in group number :

Text Solution

Verified by Experts

The correct Answer is:
3
Lanthanide are placed in `6^(th)` period after La and Actinides are placed in `7^(th)` period after Ac in third group.
Promotional Banner

Topper's Solved these Questions

  • QUALITATIVE ANALYSIS PART 1

    RESONANCE|Exercise A.L.P|39 Videos

  • SOLID STATE

    RESONANCE|Exercise PHYSICAL CHEMITRY (SOLID STATE)|45 Videos

Similar Questions

Explore conceptually related problems

Lanthandies and actinides are

Lanthanides are

Lanthanides and actinides resemble in

All actinides are

Lanthanide and Actinide contraction refers to

RESONANCE-RANK BOOSTER-All Questions
  1. Considering the elements F,CI,O and S, the correct order of their elec...

    Text Solution

    |

  2. Give the name and atomic number of the inert gas atom in which the tot...

    Text Solution

    |

  3. The Lanthanides and Actinides are placed in group number :

    Text Solution

    |

  4. A metal has electronic configuration [Ar]^(18)3d^7 4s^2.On the basis o...

    Text Solution

    |

  5. An ion having a 4+ charge and a mass of 51.99 amu has two electrons wi...

    Text Solution

    |

  6. Total Numbers of elements which are belong to same period(III). Li,N...

    Text Solution

    |

  7. The value of n (i.e. principal qunatum number ) for the valence shell ...

    Text Solution

    |

  8. Select the most ionic and most covalent compounds respectively from th...

    Text Solution

    |

  9. In which of the following sets the central atom of each member involve...

    Text Solution

    |

  10. In which of the following groups all the members have linear shape ?

    Text Solution

    |

  11. According to Fajans'rules, the percentage of covalent character in an ...

    Text Solution

    |

  12. The BF3 is a planar molecule where as NF3 is pyramidal because :

    Text Solution

    |

  13. Which of the following are isoelectronic and isostructural ?

    Text Solution

    |

  14. Anhydrous Al Cl(3) is covalent . From the data given below Lattice E...

    Text Solution

    |

  15. What is the hybridisation of boron atoms in compound Mg[B2O(OH)6] ?

    Text Solution

    |

  16. Draw the structure of XeF4 molecule.

    Text Solution

    |

  17. Match the following and choose the correct option given below (a) N(...

    Text Solution

    |

  18. According to molecular orbital theory which of the following is correc...

    Text Solution

    |

  19. Which of the following statements are correct? (I) N(2)H(4) is pyra...

    Text Solution

    |

  20. Which charge for the N2 molecule would give a bond order of 2.5 ?

    Text Solution

    |