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The chemistry of the actinoid elements i...

The chemistry of the actinoid elements is not so smooth as that of the lanthanoid. Justify this statement by giving some example from the oxidation state of these elements

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Lanthanoids show limited number if oxidation state ,`viz,+2,+3` and `+4`(out of which+3 is most common). This is because of large energy gap between `4f,5d` and `6s` subshells, the dominant state of actinoids is also +3 but they show a number of other oxidation states also ,e.g. uranium `(Z=92)` and plutonium `(Z=94)`, show+3+4+5 and +6 neptunium `(Z=94)` show +3+4+5 and +7 etc. this is due to small energy difference between 5f 6d and 7s subshell of the actinoids
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The chemistry of the actinoid elements is not so smooth as that of the lanthanoids. Justify this statement by giving some examples from the oxidation state of these elements.

The chemistry of the actionid elements is not so smooth as that of the lanthaoids. Justify this statements by giving some example from the oxidation state of these elements.

Knowledge Check

  • Oxidation state of zero group elements is

    A
    `-1`
    B
    `+1`
    C
    0
    D
    `-2`
  • The common oxidation state of transition elements is

    A
    `+2`
    B
    `+4`
    C
    `+3`
    D
    `+7`
  • False statement about the trent in oxidation states of transition element is :

    A
    There exists a general trend of lesser number of oxidation states at each end of the series and higher number in the middle
    B
    There is reduced tendency of higher oxidation states towards the end of the series
    C
    The stability of the higher oxidation states decreases going down the group
    D
    the highest oxidation stetes are oftern stabilized in the oxides and fluoride compounds.
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