Home
Class 12
CHEMISTRY
What are actinide ? Give three examp...

What are actinide ? Give three example .

Text Solution

Verified by Experts

( I) The fourteen elements following actinium i.e., from Thorium (TH) to Lawrentium (Lr) are called actinoids .
(ii) Similar to lanthanoids they are placed at the botton of the periodic table . Electronic configuration (Rn) `5f^(2-14) 6d^(-2) 7s^(2)`
Ex : Actinium (A c)
Thorium (Th)
Uranium ( U)
Promotional Banner

Topper's Solved these Questions

  • TRANSITION AND INNER TRANSITION ELEMENTS

    SURA PUBLICATION|Exercise Evaluate Yourself|2 Videos

  • TRANSITION AND INNER TRANSITION ELEMENTS

    SURA PUBLICATION|Exercise Choose The Correct Answer|21 Videos

  • TRANSITION AND INNER TRANSITION ELEMENTS

    SURA PUBLICATION|Exercise Value Based Question|1 Videos

  • SURFACE CHEMISTRY

    SURA PUBLICATION|Exercise UNIT TEST ( LONG ANSWER )|2 Videos

Similar Questions

Explore conceptually related problems

What are spontaneous reaction? Give three examples for spontaneous reaction.

SURA PUBLICATION-TRANSITION AND INNER TRANSITION ELEMENTS-Answer the Following Question
  1. What are inner transition elements ?

    Text Solution

    |

  2. Justify the position of lanthanides and actinides in the periodic...

    Text Solution

    |

  3. What are actinide ? Give three example .

    Text Solution

    |

  4. Why Gd^(3+) is colourless ?

    Text Solution

    |

  5. Explain why compounds of Cu^(2+) are coloured but those of Zn^(2...

    Text Solution

    |

  6. (a) Describe the preparation of potassium dichromate.

    Text Solution

    |

  7. What is lanthanide contraction and what are the effects of lanth...

    Text Solution

    |

  8. Complete the following a . MnO(4)^(2+) + H^(+) to ? b . C(6) H(...

    Text Solution

    |

  9. What are interstitial compounds ?

    Text Solution

    |

  10. Calculate the number of unpaired electrons in Ti^(3+) , Mn^(2+) a...

    Text Solution

    |

  11. Write the electronic configuration of Ce^(4+) and Co^(2+)

    Text Solution

    |

  12. Explain briefly how +2 states becomes more and more stable in t...

    Text Solution

    |

  13. Which is more stables ? Fe^(3+) or Fe^(2+) - explain .

    Text Solution

    |

  14. Explain the variation in E(m^(2+))^(0) //M 3d series .

    Text Solution

    |

  15. Compare Lantanides and actinides.

    Text Solution

    |

  16. Explain why Cr^(2+) strongly reducing while Mn^(3+) is strongly ...

    Text Solution

    |

  17. Compare the ionization enthalpies of first series of the transition...

    Text Solution

    |

  18. Actinod contraction is greater from element to element than the ...

    Text Solution

    |

  19. Comparing La(OH)(3) and Lu(OH)(3), which is more basic and explain why...

    Text Solution

    |

  20. Why Europium (ii) is more stable than Cerium (ii) ?

    Text Solution

    |