Home
Class 12
CHEMISTRY
The outer electronic configurations of t...

The outer electronic configurations of two members of the lanthanoid series are as follow: `4f^(1) 5d^(1)` and `4f^(7) 5d^(0) 6s^(2)`. Whataretheir atomic numbers? Predict the oxidation states exhibited by these elements in their compounds.

Promotional Banner

Topper's Solved these Questions

  • SAMPLE PAPER 4

    ARIHANT PUBLICATION|Exercise GROUP C |7 Videos

  • SAMPLE PAPER 4

    ARIHANT PUBLICATION|Exercise GROUP A |7 Videos

  • SAMPLE PAPER 1

    ARIHANT PUBLICATION|Exercise GROUP C|14 Videos

  • SAMPLE PAPER 5

    ARIHANT PUBLICATION|Exercise GROUP C |7 Videos

Similar Questions

Explore conceptually related problems

Name the members of the lanthanoid series which exhibit + 4 oxidation states and those which exhibit +2 oxidation states. Try to correlate this type of behaviour with the electronic configuration of these elements.

Which elements has electronic configuration 1s^2 2s^ 3s^2 3p^6 4s^2 ?

Which is more stable configuration and why ? 4s^2 3d^9 and 4S^1 4s^10

The electronic configuration of an atom is 1s^2 2s^2 2p^6 3s^2 . Determine its atomic number. How many neutrons are present in the nucleus if its atomic weight is 24.

If the nitrogen atom had electronic configuration is 1s^7 , it would have energy lower than that of the normal ground state configuration 1s^2 2s^2 2p^3 because the electrons would be closer to the nucleus. Yet 1s^7 is not observed. It violates:

The co-ordination number and oxidation number of X in the following compound [X(SO_4)(NH_3)_5]C1 will be:

ARIHANT PUBLICATION-SAMPLE PAPER 4 -GROUP B
  1. What happens when PCl(5) is heated

    Text Solution

    |

  2. What happens when H(3)PO(3) is heated?

    Text Solution

    |

  3. Define osmotic pressure ? How is the osmotic pressure related to the c...

    Text Solution

    |

  4. Write the main structural difference between DNA and RNA. Of the two b...

    Text Solution

    |

  5. What is the primary and secondary valency of chromium in the complex i...

    Text Solution

    |

  6. What is the order of acidic character of 1^(@),2^(@) and 3^(@) alcohol...

    Text Solution

    |

  7. Why are antioxidants used in the food?

    Text Solution

    |

  8. Explain the difference between the average rate and instantaneous rate...

    Text Solution

    |

  9. How are the following properties of crystals affected by Schottky and ...

    Text Solution

    |

  10. Write the reaction for the formation of each of the following: (a) ...

    Text Solution

    |

  11. How is bakelite made and what is its major use ? Why is it called ther...

    Text Solution

    |

  12. Why does a native protein loses its biological activity on heating?

    Text Solution

    |

  13. How do size of particles of adsorbent, pressure of gas and prevailing ...

    Text Solution

    |

  14. Write the difference between ideal and non-ideal solutions.

    Text Solution

    |

  15. Give the industrial uses of methanol, ethanol and phenol.

    Text Solution

    |

  16. Complete the following reactions CH(3)CH(2)NH(2) + CHCl(3) + (alc) K...

    Text Solution

    |

  17. Complete the following reaction. C(6)H(5)N(2)^(+)Cl^(-) overset(H(2)...

    Text Solution

    |

  18. Complete the following reactions

    Text Solution

    |

  19. The outer electronic configurations of two members of the lanthanoid s...

    Text Solution

    |

  20. Draw all the possible isomers (structural and stereoisomeric) having t...

    Text Solution

    |