Home
Class 12
CHEMISTRY
Radii of iron atom and its ions follow F...

Radii of iron atom and its ions follow `Fe > Fe^(2+) > Fe^(3+)` - explain.

Text Solution

Verified by Experts

When a neutral atom loses an electron, a positive ion (cation) forms. In this ion, there will be less number of electrons then protons. So the nuclear attraction on the valence electrons would increase. Then the size decreases.
As more and more electrons are removed, the nuclear attraction on the valence shell of electrons increases more and more. Consequently, the ionic size decreases more and more.
So, sizes : `F_(e) > Fe^(2+) > Fe^(3+)`.
Promotional Banner

Topper's Solved these Questions

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    VGS PUBLICATION-BRILLIANT|Exercise Short Answer Questions|41 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    VGS PUBLICATION-BRILLIANT|Exercise Long Answer Questions|24 Videos

  • CHEMICAL EQUILIBRIUM AND ACIDS-BASES

    VGS PUBLICATION-BRILLIANT|Exercise ADDITIONAL QUESTIONS & ANSWERS|8 Videos

  • ENVIRONMENTAL CHEMISTRY

    VGS PUBLICATION-BRILLIANT|Exercise LONG ANSWER QUESTIONS|6 Videos

Similar Questions

Explore conceptually related problems

Adding powdered lead and iron to a solution that is 1M in both Pb^(2+) and Fe^(2+) ions, would results to a reaction in which (E^@ Fe^(2+)//Fe = -0.44V, E^@Pb^(2+)//Pb = -0.13V)

The oxidation state of Fe in [Fe(CN)_6]^(-3) ion is

Standared electrode potential of two half-reactions are given below : Fe^(2+) iff Fe " "E^(@) = -0.44 V , Fe^(3+) iff Fe^(2+) " "E^(@) = + 0.77V If Fe^(2+) , Fe^(3+) and Fe are kept together :

What is the correct order of radii of Fe^(2+), Fe^(3+) and neutral Fe atom. Why?

Which of the following order is correct for the size of Fe^(3+) , Fe and Fe^(2+) ?

Explain the decrease in the trend of the radius: Fe gt Fe^(2+) gt Fe^(3+)

A quantity of 25.0 mL of solution containing both Fe^(2+) and Fe^(3+) ions is titrated with 25.0 mL of 0.0200 M KMnO_(4) (in dilute H_(2)SO_(4) ). As a result, all of the Fe^(2+) ions are oxidised to Fe^(3+) ions. Next 25 mL of the original solution is treated with Zn metal finally, the solution requires 40.0 mL of the same KMnO_(4) solution for oxidation to Fe^(3+) . MnO_(4)^(-)+5Fe^(2+)+8H^(+)toMn^(2+)+5Fe^(3+)+4H_(2)O Zinc aded in the second titration wil

VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -Long Answer Questions
  1. Radii of iron atom and its ions follow Fe > Fe^(2+) > Fe^(3+) - explai...

    Text Solution

    |

  2. Discuss in detail about the classification of elements by Mendeleeff.

    Text Solution

    |

  3. From a study of properties of neighbouring elements, the properties of...

    Text Solution

    |

  4. Define the mordern periodic law . Discuss the construction of t...

    Text Solution

    |

  5. Discuss the relation between the number of electron filled into the su...

    Text Solution

    |

  6. Write an essay on s, p, d and f-block elements.

    Text Solution

    |

  7. Relate the electronic configuration of elements and their properties i...

    Text Solution

    |

  8. What is a periodic property? How the following properties vary in a gr...

    Text Solution

    |

  9. What is a periodic property? How the following properties vary in a gr...

    Text Solution

    |

  10. What is a periodic property? How the following properties vary in a gr...

    Text Solution

    |

  11. What is a periodic property? How the following properties vary in a gr...

    Text Solution

    |

  12. Write a note on (a) Atomic radius.

    Text Solution

    |

  13. Write a note on (b) Metallic radius.

    Text Solution

    |

  14. Write a note on (c ) Covalent radius.

    Text Solution

    |

  15. Define IE(1) and IE(2). Why is IE(2) > IE(1) for a given atom? Discuss...

    Text Solution

    |

  16. How do the following properties change in group - 1 and in the third p...

    Text Solution

    |

  17. How do the following properties change in group - 1 and in the third p...

    Text Solution

    |

  18. How do the following properties change in group - 1 and in the third p...

    Text Solution

    |

  19. How do the following properties change in group - 1 and in the third p...

    Text Solution

    |

  20. Define electron gain enthalpy. How it varies in a group and in a perio...

    Text Solution

    |

  21. What is electronegativity?

    Text Solution

    |