Home
Class 12
CHEMISTRY
Give one example each of lanthanoid ion ...

Give one example each of lanthanoid ion having +2, +3 and +4 oxidation states.

Text Solution

Verified by Experts

+2 : `Eu^(2+)` (having [Xe] `4f^7` configuration)
+3 : `La^(3+)` (having [Xe] `4f^0` configuration)
+4 : `Ce^(4+)` (having [Xe] `4f^0` configuration)
Promotional Banner

Topper's Solved these Questions

  • D AND F-BLOCK ELEMENTS

    MODERN PUBLICATION|Exercise NCERT FILE (INTEXT QUESTION)|10 Videos

  • D AND F-BLOCK ELEMENTS

    MODERN PUBLICATION|Exercise NCERT FILE (TEXTBOOK EXERCISE)|38 Videos

  • D AND F-BLOCK ELEMENTS

    MODERN PUBLICATION|Exercise PRACTICE PROBLEM|33 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|13 Videos

  • ELECTROCHEMISTRY

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|20 Videos

Similar Questions

Explore conceptually related problems

Lanthanoids and actinoids are f-block elements in which the last electron enters the anti-penultimate energy level. The most common oxidation state of lanthanoids is +3, though +2 and +4 oxidation states are exhibited by some of the elements. In lanthanoid series, there is a progressive decrease in atomic and ionic radii, known as lanthanoid contraction. Unlike lanthanoids, actinoids show a large number of oxidation states. Name an element of lanthanoid series, which is known to show +4 oxidation state. Is it a strong oxidising agent or reducing agent?

Lanthanoids and actinoids are f-block elements in which the last electron enters the anti-penultimate energy level. The most common oxidation state of lanthanoids is +3, though +2 and +4 oxidation states are exhibited by some of the elements. In lanthanoid series, there is a progressive decrease in atomic and ionic radii, known as lanthanoid contraction. Unlike lanthanoids, actinoids show a large number of oxidation states. Name two lanthanoids which exhibit +2 oxidation state.

Lanthanoids and actinoids are f-block elements in which the last electron enters the anti-penultimate energy level. The most common oxidation state of lanthanoids is +3, though +2 and +4 oxidation states are exhibited by some of the elements. In lanthanoid series, there is a progressive decrease in atomic and ionic radii, known as lanthanoid contraction. Unlike lanthanoids, actinoids show a large number of oxidation states. Which out of La(OH)_3 and Lu(OH)_3 is more basic?

Lanthanoids and actinoids are f-block elements in which the last electron enters the anti-penultimate energy level. The most common oxidation state of lanthanoids is +3, though +2 and +4 oxidation states are exhibited by some of the elements. In lanthanoid series, there is a progressive decrease in atomic and ionic radii, known as lanthanoid contraction. Unlike lanthanoids, actinoids show a large number of oxidation states. Write the general electronic configuration of lanthanoids.

Lanthanoids and actinoids are f-block elements in which the last electron enters the anti-penultimate energy level. The most common oxidation state of lanthanoids is +3, though +2 and +4 oxidation states are exhibited by some of the elements. In lanthanoid series, there is a progressive decrease in atomic and ionic radii, known as lanthanoid contraction. Unlike lanthanoids, actinoids show a large number of oxidation states. Which is the last element of the actinoid series? Write its electronic configuration.

Give one example each in which halogens display positive oxidation states from +1 " to " +7 .

Give one example each of polyatomic element and polyatomic ion

MODERN PUBLICATION-D AND F-BLOCK ELEMENTS-CONCEPTUAL QUESTION
  1. What is the most common form of chromium in basic solution ? What ion ...

    Text Solution

    |

  2. Explain how the colour of K2Cr2O7 solution depends on pH of the solut...

    Text Solution

    |

  3. Name the oxometal anions of the first series of the transition metals ...

    Text Solution

    |

  4. Complete the following reactions : (i) Cr(2)O(7)^(2-)+Sn^(2+)+H^(+) ...

    Text Solution

    |

  5. Sodium chloride when heated with conc. H(2)SO(4) and solid potassium d...

    Text Solution

    |

  6. Give reasons for following in one or two sentences: CrO3 is an acid ...

    Text Solution

    |

  7. Complete the following chemical equations : (i) KMnO4 overset(513K...

    Text Solution

    |

  8. Why KMnO(4) is used in cleaning surgical instruments in hospitals ?

    Text Solution

    |

  9. Identify the oxoanion of chromium which is stable in acidic medium

    Text Solution

    |

  10. In the transition series, starting from lanthanum La(Z=57), the next e...

    Text Solution

    |

  11. One among the lanthanoides, Ce(III), can be easily oxidized to Ce(IV) ...

    Text Solution

    |

  12. Why do Zr and Hf exhibit similar properties ?

    Text Solution

    |

  13. What are the different oxidation states exhibited by the lanthanoids?

    Text Solution

    |

  14. What is the basic difference between the electronic configuration of t...

    Text Solution

    |

  15. The trivalent ion having size in lanthanide series is

    Text Solution

    |

  16. Give one example each of lanthanoid ion having +2, +3 and +4 oxidation...

    Text Solution

    |

  17. Can lanthanum ion (Z = 57) exist in +4 oxidation state ? Justify your ...

    Text Solution

    |

  18. Why is chemistry of all lanthanoids identical ?

    Text Solution

    |

  19. Why is europium (II) more stable than cerium (II) ?

    Text Solution

    |

  20. What are alloys? Name an important alloy which contains some of the la...

    Text Solution

    |