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Compare the chemistry with that of the l...

Compare the chemistry with that of the lanthanoids with special reference to (i) electronic configuration (ii) atomic and ionic sizes (iii) oxidation state (iv) chemical reactivity .

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Compare the chemistry of the actinoids with that of lanthanoids with reference to : (i) electronic configuration, (ii) oxidation states, (iii) chemical reactivity,

Electronic configuration of a transition elements X in +3 oxidation state is [Ar]3d^(5) . What is its atomic number ?

Knowledge Check

  • The electronic configuration of transition element X is +3 oxidation state is [Ar]3d^5 what is its atomic number?

    A
    25
    B
    26
    C
    27
    D
    24

  • Of the following outer electronic configuration of the atoms, the highest oxidation state is exhibited by which one of them?

    A
    `(n-1)d^8ns^2`
    B
    `(n-1)d^5ns^1`
    C
    `(n-1)d^3ns^2`
    D
    `(n-1)d^5ns^2`

  • The electronic configuration of transitin element "X", is +3, oxidation state is [Ar] 3d^5 . What is its atomic number?

    A
    25
    B
    26
    C
    27
    D
    24

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    Two elements X and Y belong to group 1 and 2 respectively in the same period of the periodic table. Compare these elements with respect to : (i) number of electrons in their outermost orbit (ii) their valencies (iii) metallic character (iv) their atomic size (v) formula of their chlorides (vii) formula of their sulphates.

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    The electronic configuration of transition element "X", is +3, oxidation state is [Ar]3d^(5) . What is its atomic number?

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