Home
Class 12
CHEMISTRY
Explain why the paramagnetic character o...

Explain why the paramagnetic character of the elements of first transition series increases upto Mn and then decreases.

Text Solution

Verified by Experts

On moving from `(._(21)Sc)` to maganese `(._(25)Mn)`, the number of unpaired electrons in the 3d-subshell increases and hence paramagnetic character increases. After Mn, pairing of electrons in the 3d-subshell begins and so the number of unpaired electrons decreases, thereby causing gradual decrease in paramagnetic character.
Promotional Banner

Topper's Solved these Questions

  • D - AND F - BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise SOLVED WBCHSE SCANNER|22 Videos

  • D - AND F - BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise SOLVED CBSE SCANNER|51 Videos

  • D - AND F - BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise QUESTION - ANSWER ZONE FOR BOARD EXAMINATION (VERY SHORT ANSWER TYPE)|38 Videos

  • COORDINATION COMPOUNDS OR COMPLEX COMPOUNDS

    CHHAYA PUBLICATION|Exercise PRACTICE SET 21|2 Videos

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 4(Answer the following questions)|14 Videos

Similar Questions

Explore conceptually related problems

Why does the paramagnetic nature of the 3d transition series increase till Cr and then decrease regularly?

Paramagnetic character of transition elements of 3d series increases upto Mn and then decreases with increase in atomic number. Explain.

Name the elements of the first transition series with the highest and the lowest melting point.

Give the electronic configuration of the fifth element of the first transition series.

Write the names and symbols of two terminal elements of first transition series.

Explain why :Why is KO_2 paramagnetic in nature.

In the first transition series the incoming electron enters the :

In first transition series, the melting point of Mn is low, because -

Explain why the ionic character of the hydrides of alkali metals increases down the group.

Which element of the Ist transition series has highest ionisation enthalpy ?

CHHAYA PUBLICATION-D - AND F - BLOCK ELEMENTS -QUESTION - ANSWER ZONE FOR BOARD EXAMINATION (SHORT ANSWER TYPE)
  1. In the quantitative volumetric analysis, why is K(2)Cr(2)O(7) preferre...

    Text Solution

    |

  2. Name the product formed on heating potassium permanganate. Write the b...

    Text Solution

    |

  3. Write the trends : Melting points of the transition elements in each s...

    Text Solution

    |

  4. Write the trends : The atomic radius of the inner transition elements ...

    Text Solution

    |

  5. What happens when KMnO(4) reacts with conc. HCl ?

    Text Solution

    |

  6. What happens when hydrogen sulphide is added to acidified potassium di...

    Text Solution

    |

  7. Explain why transition elements have many irregularities in their elec...

    Text Solution

    |

  8. Explain why iron is a transition metal but sodium is not.

    Text Solution

    |

  9. Chromium is a typical hard metal, while mercury is a liquid, Explain.

    Text Solution

    |

  10. The melting and boiling points of Zn, Cd and Hg are low. How will you ...

    Text Solution

    |

  11. Why are the ionisation energies of 5d-metals greater than those of 3d-...

    Text Solution

    |

  12. Explain why the paramagnetic character of the elements of first transi...

    Text Solution

    |

  13. The 4d and 5d-series of transition metals have more frequent metal-met...

    Text Solution

    |

  14. Explain why iron has higher melting point than copper.

    Text Solution

    |

  15. In permanganate ion, there is a covalency between Mn and oxygen. How w...

    Text Solution

    |

  16. Explain why electronic configurations of lanthanoids are not known wit...

    Text Solution

    |

  17. The electronic configurations of actinides are not known with certaint...

    Text Solution

    |

  18. The largest number of oxidation states are exhibited by the elements l...

    Text Solution

    |

  19. Unlike Cr^(3+), Mn^(2+), Fe^(3+) and the subsequent M^(3+) ions of 3d ...

    Text Solution

    |

  20. Cobalt(II) is stable in aqueous solution but in the presence of comple...

    Text Solution

    |