Home
Class 12
CHEMISTRY
Gadolinium belongs to 4f series. It's at...

Gadolinium belongs to 4f series. It's atomic number is 64. Which of the following is the correct electronic configuration of gadolinium ?

A

`[Xe]4f^7 5d^1 6s^2`

B

`[Xe]4f^6 5d^2 6s^2`

C

`[Xe]4f^8 6d^2`

D

`[Xe]4f^9 5s^1`

Text Solution

Verified by Experts

The correct Answer is:
A
`""_(64)Gd : [Xe]^(54) 4f^7 5d^1 6s^2 ` (due to greater stability of half- filled 4f subshell).
Promotional Banner

Topper's Solved these Questions

  • d- AND- f- BLOCK ELEMENTS

    ICSE|Exercise EXERCISE (PART-I)(CORRECT THE FOLLOWING STATEMENTS BY CHANGING THE UNDERLINE PART OF THE SENTENCE : )|15 Videos

  • d- AND- f- BLOCK ELEMENTS

    ICSE|Exercise EXERCISE (PART-I)(MATCH AND FOLLOWINGS):|1 Videos

  • d- AND- f- BLOCK ELEMENTS

    ICSE|Exercise ISC EXAMINATION QUESTIONS (PART-II)(DESCRIPTIVE QUESTIONS)|15 Videos

  • COORDINATION COMPOUNDS

    ICSE|Exercise ISC EXAMINATION QUESTION (PART- II DESCRIPTIVE QUESTIONS)|39 Videos

  • DISTINCTION BETWEEN PAIRS OF COMPOUNDS

    ICSE|Exercise QUESTIONS |155 Videos

Similar Questions

Explore conceptually related problems

Gadolinium belongsd to 4f series. It's atomic number is 64. which of the following is the correct electronic configuration of gadolinium ?

Gadolinium belongsd to 4f series. It's atomic number is 64. which of the following is the correct electronic configuration of gadolinium ?

Which of the following is the correct electronic configuration of potassium ?

Which one of the following is a correct electronic configuration of sodium?

Which of the following is the electronic configuration of H_(3)PO_(4) ?

Which of the following is the correct electronic configuration in octahedral complex with d^4 configuration?

Which of these is the correct electronic configuration of Platinum (At. Number 78)

Which one is the correct ground state electronic configuration :

Which of the following electronic configuration is not possible?

Which of the following electronic configuration is not possible ?

ICSE-d- AND- f- BLOCK ELEMENTS-EXERCISE (PART-I)(OBJECTIVE QUESTIONS)(THE CORRECT ALTERNATIVE FROM THE CHOICES GIVEN : )
  1. The electronic configuration of Cu(II) is 3d^9 whereas that of Cu(I) i...

    Text Solution

    |

  2. Metallic radii of some transition elements are given below. Which of t...

    Text Solution

    |

  3. Generally transition elements form coloured salts due to the presence ...

    Text Solution

    |

  4. On addition of small amount of KMnO(4) to concentrated H(2)SO(4), a g...

    Text Solution

    |

  5. The magnetic nature of elements depends on the presence of unpaired el...

    Text Solution

    |

  6. Which of the listed oxidation states is common for all lanthanoids ?

    Text Solution

    |

  7. Which of the following reactions are disproportionation reactions ? ...

    Text Solution

    |

  8. When KMnO4 solution is added to oxalic acid solution, the decolourisat...

    Text Solution

    |

  9. There are 14 elements in actinoid series. Which of the following eleme...

    Text Solution

    |

  10. KMnO(4) acts as an oxidising agent in acidic medium. The number of mol...

    Text Solution

    |

  11. Which of the following is amphoteric oxide? Mn(2)O(7), CrO(3), C...

    Text Solution

    |

  12. Gadolinium belongs to 4f series. It's atomic number is 64. Which of th...

    Text Solution

    |

  13. Interstitial compounds are formed when small atoms are trapped inside ...

    Text Solution

    |

  14. The magnetic moment is associated with its spin angular momentum and o...

    Text Solution

    |

  15. KMnO(4) acts as an oxidising agent in alkaline medium. When alkaline K...

    Text Solution

    |

  16. Which of the following statements is not correct ?

    Text Solution

    |

  17. When acidified K2Cr2O7 solution is added to Sn^(2+) salts, then Sn^(2+...

    Text Solution

    |

  18. Highest oxidation state of manganese in fluorides is +4(MnF4) but hig...

    Text Solution

    |

  19. Although Zirconium belongs to 4d transition series and Hafnium to 5d t...

    Text Solution

    |

  20. Why is HCl not used to make the medium acidic in oxidation reactions o...

    Text Solution

    |