Home
Class 12
CHEMISTRY
Use Hund's rule to derive the electronic...

Use Hund's rule to derive the electronic configuration of `Ce^(3+)` ion and calculate its magnetic moment on the basis of 'spin-only' formula.

Text Solution

Verified by Experts

`Ce(Z=58)=[Xe] 4f^(1) 5d^(1) 6s^(2)`
`Ce^(3+)=[Xe]4f^(1)` (only one unpaired electron) By 'spin-only' formula, Magnetic moment of `Ce^(3+)(mu)=sqrt(n(n+2))`
`[because n=1` (unpaired electron)]`" "=sqrt(1(1+2))=sqrt(3)=1.73 BM`
Promotional Banner

Topper's Solved these Questions

  • D AND F- BLOCK ELEMENTS AND CO-ORDINATION COMPOUNDS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise LONG ANSWER QUESTIONS|23 Videos

  • D AND F- BLOCK ELEMENTS AND CO-ORDINATION COMPOUNDS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise INTEXT QUESTIONS|33 Videos

  • D AND F- BLOCK ELEMENTS AND CO-ORDINATION COMPOUNDS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise VERY SHORT ANSWER QUESTIONS|71 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise Intex questions|5 Videos

  • ELECTROCHEMISTRY & CHEMICAL KINETICS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise DAM SURE|18 Videos

Similar Questions

Explore conceptually related problems

Write 'spin only' formula to calculate the magnetic moment of transition metal ions.

Calculate the 'spin only' magnetic moment of Fe_(aq)^(2+) ion.

How many unpaired electrons are present in ferrous ion? Calculate its net spin and magnetic moment.

Calculate the spin only magnetic moment of Ti^(3+) in C.G.S unit

Calculate the 'spin only' magnetic moment of M^(2+) (aq) ion (Z = 27).

Electronic configuration of multielectron atoms can be written by the use of four quantum numbers and also by following certain principles. Pauli's exclusio principle suggests that maximum capacity of an atomic orbital is two. Auf bau principle suggests that the lower energy orbitals are filled first and hence stability can be attained. Hunds rule of maximum multiplicity suggests that pairing occurs with one electron. The arrangement of electrons in the space around the nucleus can be understood only after writing the electronic configuration. Thus writing electronic configuration is more important in the structure of an atom. Applying Hunds rule of maximum multiplicity, the maximum number of electrons that can posses spin quantum number +1/2 in 4p orbitals is

Electronic configuration of multielectron atoms can be written by the use of four quantum numbers and also by following certain principles. Pauli's exclusion principle suggests that maximum capacity of an atomic orbital is two. Auf bau principle suggests that the lower energy orbitals are filled first and hence stability can be attained. Hunds rule of maximum multiplicity suggests that pairing occurs with one electron. The arrangement of electrons in the space around the nucleus can be understood only after writing the electronic configuration. Thus writing electronic configuration is more important in the structure of an atom. The set of quantum numbers not possible for electrons present in potassium atom in its ground state

Electronic configuration of multielectron atoms can be written by the use of four quantum numbers and also by following certain principles. Pauli's exclusion principle suggests that maximum capacity of an atomic orbital is two. Auf bau principle suggests that the lower energy orbitals are filled first and hence stability can be attained. Hunds rule of maximum multiplicity suggests that pairing occurs with one electron. The arrangement of electrons in the space around the nucleus can be understood only after writing the electronic configuration. Thus writing electronic configuration is more important in the structure of an atom. Auf-bau principle is first violated for the element with atomic numbers

VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-D AND F- BLOCK ELEMENTS AND CO-ORDINATION COMPOUNDS -SHORT ANSWER QUESTIONS
  1. Predict which of he ions Cu^(+), Sc^(3+), Mn^(2+), Fe^(2+) are coloure...

    Text Solution

    |

  2. Compare the stability of + 2 oxidation state of the elements of the fi...

    Text Solution

    |

  3. Use Hund's rule to derive the electronic configuration of Ce^(3+) ion ...

    Text Solution

    |

  4. Write down the number of 3d electrons in each of the following ions : ...

    Text Solution

    |

  5. Explain Werner's theory of coordination compounds with suitable exampl...

    Text Solution

    |

  6. Give the geometrical shapes of the following complex entities [Co(NH...

    Text Solution

    |

  7. Give the geometrical shapes of the following complex entities [Ni(CO...

    Text Solution

    |

  8. Give the geometrical shapes of the following complex entities [PtCl(...

    Text Solution

    |

  9. Give the geometrical shapes of the following complex entities [Fe(CN...

    Text Solution

    |

  10. Explain the terms Ligand

    Text Solution

    |

  11. Explain the terms Coordination number

    Text Solution

    |

  12. Explain the terms Coordination entity

    Text Solution

    |

  13. Explain the terms Central metal atom/ion.

    Text Solution

    |

  14. Explain the terms Unidentate ligand

    Text Solution

    |

  15. Explain the terms bidentate ligand

    Text Solution

    |

  16. Explain the terms polydentate ligand

    Text Solution

    |

  17. Explain the terms ambidentate ligand giving one example for each.

    Text Solution

    |

  18. What is meant by chelate effect ? Give example.

    Text Solution

    |

  19. Give the oxidation numbers of the central metal atoms in the following...

    Text Solution

    |

  20. Give the oxidation numbers of the central metal atoms in the following...

    Text Solution

    |