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Write three genral characteristies of th...

Write three genral characteristies of the s-block of the periodic table which distinguish them form the elements of other blocks.

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General characteristic of s-block elements:
a. s-block elements are lighter than other block elements.
b. They are highly electropositive in nature.
c. They have low ionisation energy.
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  • The f-block of the periodic table contains those elements in which :

    A
    Only `4f` orbitals are progressively filled in 6th period.
    B
    Only `5f` orbitals are progressively filled in 7th period.
    C
    4f and 5f orbitals are progressively filled in 6th and 7th periods respectively.
    D
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    A
    Only `4f` orbitals are progressively filled in 6th period.
    B
    Only `5f` orbitals are progressively filled in 7th period.
    C
    4f and 5f orbitals are progressively filled in 6th and 7th periods respectively.
    D
    None

  • Na belongs to which block in the periodic table ?

    A
    s-block,
    B
    p-block
    C
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    D
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